diff --git a/pom.xml b/pom.xml
index 6f773c7..07dfcc2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.qcloud</groupId>
 	<artifactId>cos_migrate_tool</artifactId>
-	<version>1.4.11</version>
+	<version>1.4.12</version>
 	<packaging>jar</packaging>
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
@@ -52,7 +52,7 @@
 		<dependency>
 			<groupId>com.qcloud</groupId>
 			<artifactId>cos_api</artifactId>
-			<version>5.6.58</version>
+			<version>5.6.126</version>
 		</dependency>
 
 		<dependency>
diff --git a/src/main/java/com/qcloud/cos_migrate_tool/config/CommonConfig.java b/src/main/java/com/qcloud/cos_migrate_tool/config/CommonConfig.java
index a4727ea..f7f4f77 100644
--- a/src/main/java/com/qcloud/cos_migrate_tool/config/CommonConfig.java
+++ b/src/main/java/com/qcloud/cos_migrate_tool/config/CommonConfig.java
@@ -18,7 +18,8 @@ public class CommonConfig {
     private String sk;
     private String token;
     private String cosPath;
-    private boolean enableHttps;
+    private boolean enableHttps = false;
+    private boolean isShortConnection = false;
     private boolean entireFileMd5Attached;
     private int taskExecutorNumber = 68;
     private StorageClass storageClass = StorageClass.Standard;
@@ -525,4 +526,19 @@ public long getBigFileUploadPartSize() {
     public void setBigFileUploadPartSize(long bigFileUploadPartSize) {
         this.bigFileUploadPartSize = bigFileUploadPartSize;
     }
+
+    public boolean isShortConnection() {
+        return isShortConnection;
+    }
+
+    public void setShortConnection(String shortConnection) throws IllegalArgumentException {
+        if (shortConnection.equalsIgnoreCase("true")) {
+            isShortConnection = true;
+        } else if (shortConnection.equalsIgnoreCase("false")) {
+            isShortConnection = false;
+        } else {
+            throw new IllegalArgumentException("invalid short connection config. only support true/false");
+        }
+    }
+
 }
diff --git a/src/main/java/com/qcloud/cos_migrate_tool/config/ConfigParser.java b/src/main/java/com/qcloud/cos_migrate_tool/config/ConfigParser.java
index 039304b..c43cb0e 100644
--- a/src/main/java/com/qcloud/cos_migrate_tool/config/ConfigParser.java
+++ b/src/main/java/com/qcloud/cos_migrate_tool/config/ConfigParser.java
@@ -34,6 +34,7 @@ public class ConfigParser {
     private static final String COMMON_COSPATH = "cosPath";
     private static final String COMMON_DB_COSPATH = "dbCosPath";
     private static final String COMMON_HTTPS = "https";
+    private static final String COMMON_SHORT_CONNECTION = "shortConnection";
     private static final String COMMON_TMP = "tmpFolder";
     private static final String COMMON_SMALL_FILE_ThRESHOLD = "smallFileThreshold";
     private static final String COMMON_STORAGE_CLASS = "storageClass";
@@ -489,6 +490,11 @@ private boolean initCommonConfig(Preferences prefs, CommonConfig commonConfig) {
             assert (enableHttpsStr != null);
             commonConfig.setEnableHttps(enableHttpsStr);
 
+            String shortConnectionStr = getConfigValue(prefs, COMMON_SECTION_NAME, COMMON_SHORT_CONNECTION);
+            if (shortConnectionStr != null && !shortConnectionStr.trim().isEmpty()) {
+                commonConfig.setShortConnection(shortConnectionStr);
+            }
+
             String tmpFolder = getConfigValue(prefs, COMMON_SECTION_NAME, COMMON_TMP);
             assert (tmpFolder != null);
             commonConfig.setTempFileFolder(tmpFolder);
diff --git a/src/main/java/com/qcloud/cos_migrate_tool/task/MigrateCopyBucketTaskExecutor.java b/src/main/java/com/qcloud/cos_migrate_tool/task/MigrateCopyBucketTaskExecutor.java
index 30d8b12..650113e 100644
--- a/src/main/java/com/qcloud/cos_migrate_tool/task/MigrateCopyBucketTaskExecutor.java
+++ b/src/main/java/com/qcloud/cos_migrate_tool/task/MigrateCopyBucketTaskExecutor.java
@@ -57,6 +57,11 @@ public MigrateCopyBucketTaskExecutor(CopyBucketConfig config) {
             clientConfig.setHttpProtocol(HttpProtocol.http);
         }
 
+        // 源也是cos的，就直接使用一样的配置，没有再像从其他云一样使用单独的src配置
+        if (config.isShortConnection()) {
+            clientConfig.setShortConnection();
+        }
+
         if (config.getSrcEndpointSuffix() != null) {
             clientConfig.setEndPointSuffix(config.getSrcEndpointSuffix());
         }
diff --git a/src/main/java/com/qcloud/cos_migrate_tool/task/MigrateCspTaskExecutor.java b/src/main/java/com/qcloud/cos_migrate_tool/task/MigrateCspTaskExecutor.java
index 03b8508..7f58a18 100644
--- a/src/main/java/com/qcloud/cos_migrate_tool/task/MigrateCspTaskExecutor.java
+++ b/src/main/java/com/qcloud/cos_migrate_tool/task/MigrateCspTaskExecutor.java
@@ -50,6 +50,8 @@ public MigrateCspTaskExecutor(CopyFromCspConfig config) {
             clientConfig.setHttpProtocol(HttpProtocol.http);
         }
 
+        // 没有使用common config里的短链接，csp一般没有公有云一样的问题
+
         clientConfig.setRegion(new Region(""));
         clientConfig.setEndpointBuilder(new SuffixEndpointBuilder(config.getSrcEndpoint()));
 
diff --git a/src/main/java/com/qcloud/cos_migrate_tool/task/TaskExecutor.java b/src/main/java/com/qcloud/cos_migrate_tool/task/TaskExecutor.java
index b2c8e93..f1b84d3 100644
--- a/src/main/java/com/qcloud/cos_migrate_tool/task/TaskExecutor.java
+++ b/src/main/java/com/qcloud/cos_migrate_tool/task/TaskExecutor.java
@@ -105,6 +105,10 @@ public TaskExecutor(MigrateType migrateType, CommonConfig config) {
             clientConfig.setHttpProxyPort(config.getProxyPort());
         }
 
+        if (config.isShortConnection()) {
+            clientConfig.setShortConnection();
+        }
+
         if (config.getClientEncrypt()) {
             this.cosClient = createEncryptClient(config, cred, clientConfig);
         } else {