diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index af67c76c..5a49ed43 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -46,6 +46,41 @@ jobs:
       - uses: actions/checkout@v4
       - run: sh scripts/clone_dependencies.sh
       - run: cd  ./Dev/Cpp/macosx/ && sh ./build_cmake.sh
+      - name: Validate notarization secrets on push
+        if: ${{ github.event_name == 'push' }}
+        env:
+          APPLE_CERT_P12_BASE64: ${{ secrets.APPLE_CERT_P12_BASE64 }}
+          APPLE_CERT_P12_PASSWORD: ${{ secrets.APPLE_CERT_P12_PASSWORD }}
+          APPLE_SIGNING_IDENTITY: ${{ secrets.APPLE_SIGNING_IDENTITY }}
+          APPLE_NOTARY_APPLE_ID: ${{ secrets.APPLE_NOTARY_APPLE_ID }}
+          APPLE_NOTARY_TEAM_ID: ${{ secrets.APPLE_NOTARY_TEAM_ID }}
+          APPLE_NOTARY_APP_PASSWORD: ${{ secrets.APPLE_NOTARY_APP_PASSWORD }}
+        run: |
+          set -eu
+          required=(
+            APPLE_CERT_P12_BASE64
+            APPLE_CERT_P12_PASSWORD
+            APPLE_SIGNING_IDENTITY
+            APPLE_NOTARY_APPLE_ID
+            APPLE_NOTARY_TEAM_ID
+            APPLE_NOTARY_APP_PASSWORD
+          )
+          for name in "${required[@]}"; do
+            if [ -z "${!name}" ]; then
+              echo "::error::Missing required notarization secret: ${name}"
+              exit 1
+            fi
+          done
+      - name: Sign and notarize macOS dylib
+        if: ${{ github.event_name == 'push' || (secrets.APPLE_CERT_P12_BASE64 != '' && secrets.APPLE_CERT_P12_PASSWORD != '' && secrets.APPLE_SIGNING_IDENTITY != '' && secrets.APPLE_NOTARY_APPLE_ID != '' && secrets.APPLE_NOTARY_TEAM_ID != '' && secrets.APPLE_NOTARY_APP_PASSWORD != '') }}
+        env:
+          APPLE_CERT_P12_BASE64: ${{ secrets.APPLE_CERT_P12_BASE64 }}
+          APPLE_CERT_P12_PASSWORD: ${{ secrets.APPLE_CERT_P12_PASSWORD }}
+          APPLE_SIGNING_IDENTITY: ${{ secrets.APPLE_SIGNING_IDENTITY }}
+          APPLE_NOTARY_APPLE_ID: ${{ secrets.APPLE_NOTARY_APPLE_ID }}
+          APPLE_NOTARY_TEAM_ID: ${{ secrets.APPLE_NOTARY_TEAM_ID }}
+          APPLE_NOTARY_APP_PASSWORD: ${{ secrets.APPLE_NOTARY_APP_PASSWORD }}
+        run: bash ci/notarize_macos_dylib.sh Dev/Plugin/Assets/Effekseer/Plugins/macOS/EffekseerUnity.dylib
       - name: Upload ios
         uses: actions/upload-artifact@v4
         with:
@@ -246,7 +281,7 @@ jobs:
           mv Android/Android/libs/x86/libEffekseerUnity.so Dev/Plugin/Assets/Effekseer/Plugins/Android/libs/x86/
           mv mac_iOS/iOS/libEffekseerUnity.a Dev/Plugin/Assets/Effekseer/Plugins/iOS/libEffekseerUnity.a
           rm -rf Dev/Plugin/Assets/Effekseer/Plugins/EffekseerUnity.bundle
-          cp -f -r mac_iOS/EffekseerUnity.bundle Dev/Plugin/Assets/Effekseer/Plugins/
+          mv mac_iOS/macOS/EffekseerUnity.dylib Dev/Plugin/Assets/Effekseer/Plugins/macOS/EffekseerUnity.dylib
           mv WebGL_2-0-19/WebGL/2.0.19-64bit/libEffekseerUnity.bc Dev/Plugin/Assets/Effekseer/Plugins/WebGL/2.0.19-64bit/
           mv WebGL_3-1-8/WebGL/3.1.8-64bit/libEffekseerUnity.bc Dev/Plugin/Assets/Effekseer/Plugins/WebGL/3.1.8-64bit/
           mv WebGL_3-1-38/WebGL/3.1.38-64bit/libEffekseerUnity.bc Dev/Plugin/Assets/Effekseer/Plugins/WebGL/3.1.38-64bit/
diff --git a/Dev/Cpp/CMakeLists.txt b/Dev/Cpp/CMakeLists.txt
index 1d300966..7c46140a 100644
--- a/Dev/Cpp/CMakeLists.txt
+++ b/Dev/Cpp/CMakeLists.txt
@@ -77,10 +77,11 @@ if(APPLE)
     else()
         list(APPEND srcs 
             ${effekseer_gl_src})
-        add_library(EffekseerUnity MODULE
+        add_library(EffekseerUnity SHARED
             ${srcs}
         )
-        set_target_properties(EffekseerUnity PROPERTIES BUNDLE TRUE)
+        # Keep the binary name as EffekseerUnity.dylib for Unity DllImport("EffekseerUnity").
+        set_target_properties(EffekseerUnity PROPERTIES PREFIX "")
     endif()
 
     target_link_libraries(EffekseerUnity PRIVATE
diff --git a/Dev/Cpp/macosx/build_cmake.sh b/Dev/Cpp/macosx/build_cmake.sh
index c1e08070..465a04ae 100644
--- a/Dev/Cpp/macosx/build_cmake.sh
+++ b/Dev/Cpp/macosx/build_cmake.sh
@@ -30,5 +30,7 @@ libtool -static -o libEffekseerUnity_ios_sim.a ../../build_ios_sim/Install/lib/l
 lipo -create libEffekseerUnity_ios.a libEffekseerUnity_ios_sim.a -output libEffekseerUnity.a
 
 # Copy to PluginProject
-cp -rf ../../build_macosx/Install/lib/EffekseerUnity.bundle ../../Plugin/Assets/Effekseer/Plugins/
+rm -rf ../../Plugin/Assets/Effekseer/Plugins/EffekseerUnity.bundle
+mkdir -p ../../Plugin/Assets/Effekseer/Plugins/macOS
+cp -f ../../build_macosx/Install/lib/EffekseerUnity.dylib ../../Plugin/Assets/Effekseer/Plugins/macOS/
 cp libEffekseerUnity.a ../../Plugin/Assets/Effekseer/Plugins/iOS/
diff --git a/Dev/Plugin/Assets/Effekseer/Plugins/EffekseerUnity.bundle/Contents/MacOS.meta b/Dev/Plugin/Assets/Effekseer/Plugins/EffekseerUnity.bundle/Contents/MacOS.meta
deleted file mode 100644
index be609fac..00000000
--- a/Dev/Plugin/Assets/Effekseer/Plugins/EffekseerUnity.bundle/Contents/MacOS.meta
+++ /dev/null
@@ -1,9 +0,0 @@
-fileFormatVersion: 2
-guid: 21b03b442a6b2a74eb0276bd719cc288
-folderAsset: yes
-timeCreated: 1425480812
-licenseType: Free
-DefaultImporter:
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 
diff --git a/Dev/Plugin/Assets/Effekseer/Plugins/EffekseerUnity.bundle/Contents/MacOS/EffekseerUnity.meta b/Dev/Plugin/Assets/Effekseer/Plugins/EffekseerUnity.bundle/Contents/MacOS/EffekseerUnity.meta
deleted file mode 100644
index 50e20bdc..00000000
--- a/Dev/Plugin/Assets/Effekseer/Plugins/EffekseerUnity.bundle/Contents/MacOS/EffekseerUnity.meta
+++ /dev/null
@@ -1,8 +0,0 @@
-fileFormatVersion: 2
-guid: 04fbbd6af322a1b4b89bc7223933a60d
-timeCreated: 1457532355
-licenseType: Free
-DefaultImporter:
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 
diff --git a/Dev/Plugin/Assets/Effekseer/Plugins/EffekseerUnity.bundle/Contents.meta b/Dev/Plugin/Assets/Effekseer/Plugins/macOS.meta
similarity index 67%
rename from Dev/Plugin/Assets/Effekseer/Plugins/EffekseerUnity.bundle/Contents.meta
rename to Dev/Plugin/Assets/Effekseer/Plugins/macOS.meta
index 311c611d..d8fdb70b 100644
--- a/Dev/Plugin/Assets/Effekseer/Plugins/EffekseerUnity.bundle/Contents.meta
+++ b/Dev/Plugin/Assets/Effekseer/Plugins/macOS.meta
@@ -1,7 +1,7 @@
 fileFormatVersion: 2
-guid: 8b62a854166eec649b458d0d99404a74
+guid: 4c5c6391f8f84fc4b1a9f317ea13c46c
 folderAsset: yes
-timeCreated: 1425480812
+timeCreated: 1457372930
 licenseType: Free
 DefaultImporter:
   userData: 
diff --git a/Dev/Plugin/Assets/Effekseer/Plugins/EffekseerUnity.bundle.meta b/Dev/Plugin/Assets/Effekseer/Plugins/macOS/EffekseerUnity.dylib.meta
similarity index 76%
rename from Dev/Plugin/Assets/Effekseer/Plugins/EffekseerUnity.bundle.meta
rename to Dev/Plugin/Assets/Effekseer/Plugins/macOS/EffekseerUnity.dylib.meta
index 1c4989b6..79e58410 100644
--- a/Dev/Plugin/Assets/Effekseer/Plugins/EffekseerUnity.bundle.meta
+++ b/Dev/Plugin/Assets/Effekseer/Plugins/macOS/EffekseerUnity.dylib.meta
@@ -1,8 +1,5 @@
 fileFormatVersion: 2
 guid: 3e51f2c8c991d5d44b5633911fdc0b07
-folderAsset: yes
-timeCreated: 1425480812
-licenseType: Free
 PluginImporter:
   serializedVersion: 1
   iconMap: {}
@@ -23,17 +20,17 @@ PluginImporter:
         DefaultValueInitialized: true
         OS: OSX
     Linux:
-      enabled: 1
+      enabled: 0
       settings:
-        CPU: x86
+        CPU: None
     Linux64:
-      enabled: 1
+      enabled: 0
       settings:
-        CPU: x86_64
+        CPU: None
     LinuxUniversal:
-      enabled: 1
+      enabled: 0
       settings:
-        CPU: AnyCPU
+        CPU: None
     OSXIntel:
       enabled: 1
       settings:
@@ -47,13 +44,13 @@ PluginImporter:
       settings:
         CPU: AnyCPU
     Win:
-      enabled: 1
+      enabled: 0
       settings:
-        CPU: AnyCPU
+        CPU: None
     Win64:
-      enabled: 1
+      enabled: 0
       settings:
-        CPU: AnyCPU
+        CPU: None
   userData: 
   assetBundleName: 
   assetBundleVariant: 
diff --git a/ci/notarize_macos_dylib.sh b/ci/notarize_macos_dylib.sh
new file mode 100755
index 00000000..08341336
--- /dev/null
+++ b/ci/notarize_macos_dylib.sh
@@ -0,0 +1,73 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+if [ "$#" -ne 1 ]; then
+  echo "Usage: $0 <path-to-dylib>"
+  exit 1
+fi
+
+PLUGIN_PATH="$1"
+if [ ! -f "$PLUGIN_PATH" ]; then
+  echo "Dylib not found: $PLUGIN_PATH"
+  exit 1
+fi
+
+required_envs=(
+  APPLE_CERT_P12_BASE64
+  APPLE_CERT_P12_PASSWORD
+  APPLE_SIGNING_IDENTITY
+  APPLE_NOTARY_APPLE_ID
+  APPLE_NOTARY_TEAM_ID
+  APPLE_NOTARY_APP_PASSWORD
+)
+
+for name in "${required_envs[@]}"; do
+  if [ -z "${!name:-}" ]; then
+    echo "Required environment variable is missing: $name"
+    exit 1
+  fi
+done
+
+TMP_DIR="${RUNNER_TEMP:-/tmp}"
+CERTIFICATE_PATH="$TMP_DIR/effekseer_apple_certificate.p12"
+KEYCHAIN_PATH="$TMP_DIR/effekseer-signing.keychain-db"
+NOTARY_ARCHIVE_PATH="$TMP_DIR/effekseer_unity_macos_notary.zip"
+KEYCHAIN_PASSWORD="$(uuidgen)"
+
+cleanup() {
+  security delete-keychain "$KEYCHAIN_PATH" >/dev/null 2>&1 || true
+  rm -f "$CERTIFICATE_PATH" "$NOTARY_ARCHIVE_PATH"
+}
+trap cleanup EXIT
+
+decode_base64_to_file() {
+  local output="$1"
+  if printf '%s' "$APPLE_CERT_P12_BASE64" | base64 --decode >"$output" 2>/dev/null; then
+    return 0
+  fi
+
+  printf '%s' "$APPLE_CERT_P12_BASE64" | base64 -D >"$output"
+}
+
+decode_base64_to_file "$CERTIFICATE_PATH"
+
+security create-keychain -p "$KEYCHAIN_PASSWORD" "$KEYCHAIN_PATH"
+security set-keychain-settings -lut 21600 "$KEYCHAIN_PATH"
+security unlock-keychain -p "$KEYCHAIN_PASSWORD" "$KEYCHAIN_PATH"
+security import "$CERTIFICATE_PATH" -k "$KEYCHAIN_PATH" -P "$APPLE_CERT_P12_PASSWORD" -T /usr/bin/codesign -T /usr/bin/security
+security set-key-partition-list -S apple-tool:,apple:,codesign: -s -k "$KEYCHAIN_PASSWORD" "$KEYCHAIN_PATH"
+
+echo "Signing $PLUGIN_PATH"
+codesign --force --keychain "$KEYCHAIN_PATH" --sign "$APPLE_SIGNING_IDENTITY" --options runtime --timestamp "$PLUGIN_PATH"
+codesign --verify --verbose=2 "$PLUGIN_PATH"
+
+ditto -c -k --keepParent "$PLUGIN_PATH" "$NOTARY_ARCHIVE_PATH"
+
+echo "Submitting for notarization..."
+xcrun notarytool submit "$NOTARY_ARCHIVE_PATH" \
+  --apple-id "$APPLE_NOTARY_APPLE_ID" \
+  --team-id "$APPLE_NOTARY_TEAM_ID" \
+  --password "$APPLE_NOTARY_APP_PASSWORD" \
+  --wait
+
+echo "Notarization completed: $PLUGIN_PATH"
diff --git a/docs/Development/MacOSNotarizationCI.md b/docs/Development/MacOSNotarizationCI.md
new file mode 100644
index 00000000..09be3736
--- /dev/null
+++ b/docs/Development/MacOSNotarizationCI.md
@@ -0,0 +1,50 @@
+# macOS dylib Notarization in CI
+
+This repository notarizes the macOS native plugin (`EffekseerUnity.dylib`) in GitHub Actions.
+
+- Workflow: `.github/workflows/build.yml`
+- Script: `ci/notarize_macos_dylib.sh`
+
+The `mac_ios` job does the following:
+
+1. Build `EffekseerUnity.dylib`
+2. Sign the dylib with `Developer ID Application`
+3. Submit the signed dylib to Apple Notary Service (`xcrun notarytool submit --wait`)
+4. Upload the notarized dylib as part of the `mac_iOS` artifact
+
+## Required GitHub Secrets
+
+Set these repository secrets before running `push` workflows:
+
+1. `APPLE_CERT_P12_BASE64`: Base64-encoded `.p12` file of your `Developer ID Application` certificate (including private key)
+2. `APPLE_CERT_P12_PASSWORD`: Password used when exporting the `.p12`
+3. `APPLE_SIGNING_IDENTITY`: Full signing identity, for example `Developer ID Application: Example Corp (TEAMID1234)`
+4. `APPLE_NOTARY_APPLE_ID`: Apple ID used for notarization
+5. `APPLE_NOTARY_TEAM_ID`: Apple Developer Team ID
+6. `APPLE_NOTARY_APP_PASSWORD`: App-specific password for the Apple ID above
+
+## How to prepare the `.p12` secret value
+
+Example (macOS):
+
+```bash
+base64 -i developer_id_application.p12 | pbcopy
+```
+
+Example (Linux):
+
+```bash
+base64 -w 0 developer_id_application.p12
+```
+
+Paste the Base64 result into `APPLE_CERT_P12_BASE64`.
+
+## Workflow behavior
+
+- On `push`, notarization secrets are mandatory. If any required secret is missing, the `mac_ios` job fails.
+- On `pull_request`, notarization runs only when all notarization secrets are available. Otherwise it is skipped.
+
+## Notes
+
+- `xcrun stapler` is not used in this flow because the target artifact is a standalone `.dylib`.
+- The merged package job consumes the notarized file at `Dev/Plugin/Assets/Effekseer/Plugins/macOS/EffekseerUnity.dylib`.
diff --git a/docs/Development/MacOSNotarizationCI_ja.md b/docs/Development/MacOSNotarizationCI_ja.md
new file mode 100644
index 00000000..0b6387d8
--- /dev/null
+++ b/docs/Development/MacOSNotarizationCI_ja.md
@@ -0,0 +1,52 @@
+# CIでのmacOS dylib公証
+
+このリポジトリでは、GitHub Actions上で macOS ネイティブプラグイン（`EffekseerUnity.dylib`）を公証します。
+通常はこの公証済み成果物を配布するため、ユーザー側での公証は不要です。
+ただし、ユーザー自身でネイティブプラグインをビルドする場合は、公証が必要です。
+
+- ワークフロー: `.github/workflows/build.yml`
+- 実行スクリプト: `ci/notarize_macos_dylib.sh`
+
+`mac_ios` ジョブでは次を実行します。
+
+1. `EffekseerUnity.dylib` をビルド
+2. `Developer ID Application` 証明書で署名
+3. Apple Notary Service に提出（`xcrun notarytool submit --wait`）
+4. 公証済み dylib を `mac_iOS` アーティファクトとしてアップロード
+
+## 必須の GitHub Secrets
+
+`push` ワークフロー実行前に、以下のリポジトリシークレットを設定してください。
+
+1. `APPLE_CERT_P12_BASE64`: `Developer ID Application` 証明書（秘密鍵を含む）を `.p12` で書き出し、Base64化した値
+2. `APPLE_CERT_P12_PASSWORD`: `.p12` エクスポート時のパスワード
+3. `APPLE_SIGNING_IDENTITY`: 署名ID（例: `Developer ID Application: Example Corp (TEAMID1234)`）
+4. `APPLE_NOTARY_APPLE_ID`: 公証に使用する Apple ID
+5. `APPLE_NOTARY_TEAM_ID`: Apple Developer Team ID
+6. `APPLE_NOTARY_APP_PASSWORD`: 上記 Apple ID の app-specific password
+
+## `.p12` の Base64 値を作る方法
+
+macOS の例:
+
+```bash
+base64 -i developer_id_application.p12 | pbcopy
+```
+
+Linux の例:
+
+```bash
+base64 -w 0 developer_id_application.p12
+```
+
+出力された文字列を `APPLE_CERT_P12_BASE64` に設定してください。
+
+## ワークフローの挙動
+
+- `push` では公証用シークレットが必須です。1つでも不足していると `mac_ios` ジョブは失敗します。
+- `pull_request` では、必要シークレットがすべて利用可能な場合のみ公証を実行し、足りない場合は公証ステップをスキップします。
+
+## 補足
+
+- 対象が単体 `.dylib` のため、このフローでは `xcrun stapler` は使用しません。
+- マージジョブは `Dev/Plugin/Assets/Effekseer/Plugins/macOS/EffekseerUnity.dylib` の公証済みファイルを使用します。
diff --git a/docs/MacOS_En.md b/docs/MacOS_En.md
index 5f367e4e..eb0513a9 100644
--- a/docs/MacOS_En.md
+++ b/docs/MacOS_En.md
@@ -1,26 +1,12 @@
-# Regarding the warning on MacOS
+# Regarding macOS warnings
 
-Currently, native notarization is not available when using Unity on MacOS.
-Therefore, if you want to use EffekseerForUnity, you need to install or handle it in the following way.
+The macOS native plugin (`EffekseerUnity.dylib`) is basically notarized by maintainers.
+In normal usage, users do not need to notarize it.
+If you build the native plugin by yourself, notarization is required.
 
-# Use the Unity PackageManager
+## CI notarization settings (for maintainers)
 
-Install Effekseer with PackageManager. This is the easiest way.
+See:
 
-https://docs.unity3d.com/2019.4/Documentation/Manual/upm-ui-giturl.html
-
-```
-https://github.com/effekseer/EffekseerForUnity_Release.git?path=Assets/Effekseer
-```
-
-# Share data with your team using git.
-
-Even if you don't use Unity PackageManager, as long as you synchronize your data with other PCs via git, you won't have any problems.
-
-# Use xattr -rc.
-
-If you want to share data with multiple PCs by compressing them into a zip or other format without using PackageManager or git, you need to enter the following command before starting Unity.
-
-```
-xattr -rc UnityProject
-```
+- `docs/Development/MacOSNotarizationCI.md`
+- `docs/Development/MacOSNotarizationCI_ja.md`
diff --git a/docs/MacOS_Ja.md b/docs/MacOS_Ja.md
index cb988737..692cffb4 100644
--- a/docs/MacOS_Ja.md
+++ b/docs/MacOS_Ja.md
@@ -1,26 +1,12 @@
-# MacOSにおける警告について
+# macOSにおける警告について
 
-現在、MacOSでUnityを使用する場合、ネイティブの公証ができません。
-そのため、EffekseerForUnityを使用する場合は下記の方法で導入、もしくは取り扱う必要があります。
+macOS向けネイティブプラグイン（`EffekseerUnity.dylib`）の公証は、基本的に開発側で実施します。
+そのため、通常の利用ではユーザー側で公証は不要です。
+ただし、ユーザー自身でネイティブプラグインをビルドする場合は、公証が必要です。
 
-# Unity PackageManagerを使用する
+## CI公証設定（メンテナ向け）
 
-EffekseerをPackageManagerでインストールします。最も簡単な方法です。
+以下を参照してください。
 
-https://docs.unity3d.com/ja/2019.4/Manual/upm-ui-giturl.html
-
-```
-https://github.com/effekseer/EffekseerForUnity_Release.git?path=Assets/Effekseer
-```
-
-# チーム内でgitを用いてデータを共有する。
-
-Unity PackageManagerを使用しなくとも、gitで他のPCとデータを同期している限り、問題は発生しません。
-
-# xattr -rcを使用する。
-
-PackageManagerやgitを使用せずに、zip等に圧縮して複数PCでデータを共有する場合、Unityを起動する前に下記のコマンドを入力する必要があります。
-
-```
-xattr -rc Unityのプロジェクト
-```
+- `docs/Development/MacOSNotarizationCI.md`
+- `docs/Development/MacOSNotarizationCI_ja.md`
diff --git a/readme_macOS.txt b/readme_macOS.txt
index 38265870..30a75f7c 100644
--- a/readme_macOS.txt
+++ b/readme_macOS.txt
@@ -1,11 +1,15 @@
 
-Currently, UnityPlugin for macOS cannot be notarized due to the circumstances of Unity.
+The macOS Unity plugin (`EffekseerUnity.dylib`) can be notarized in CI.
+In normal usage, users do not need to notarize because maintainers distribute notarized binaries.
+If you build the native plugin by yourself, notarization is required.
 
-現在、macOS向けのUnityPluginはUnityの都合により公証できない状態です。
+macOS向けUnityPlugin（`EffekseerUnity.dylib`）はCIで公証可能です。
+通常は開発側が公証済みバイナリを配布するため、ユーザー側で公証は不要です。
+ただし、ユーザー自身でネイティブプラグインをビルドする場合は、公証が必要です。
 
-Be sure to read this document before using EffekseerForUnity.
+If you need to notarize, please read the documents below.
 
-必ずこのドキュメントを読んだ後に、EffekseerForUnityを使用してください。
+公証をする場合は、下記のドキュメントを読んでください。
 
 - [English](https://github.com/effekseer/EffekseerForUnity/blob/master/docs/MacOS_En.md)