diff --git a/sofa-ark-parent/core-impl/container/src/main/java/com/alipay/sofa/ark/container/model/BizModel.java b/sofa-ark-parent/core-impl/container/src/main/java/com/alipay/sofa/ark/container/model/BizModel.java
index d157a7b45..b883440bd 100644
--- a/sofa-ark-parent/core-impl/container/src/main/java/com/alipay/sofa/ark/container/model/BizModel.java
+++ b/sofa-ark-parent/core-impl/container/src/main/java/com/alipay/sofa/ark/container/model/BizModel.java
@@ -323,6 +323,16 @@ public void start(String[] args, Map<String, String> envs) throws Throwable {
 
     private void doStart(String[] args, Map<String, String> envs) throws Throwable {
         AssertUtils.isTrue(bizState == BizState.RESOLVED, "BizState must be RESOLVED");
+
+        // 支持运行时根据环境变量动态设置模块的启动类
+        if (envs != null){
+            String mainClassFromEnv = envs.get(Constants.BIZ_MAIN_CLASS);
+            if (mainClassFromEnv != null){
+                mainClass = mainClassFromEnv;
+                ArkLoggerFactory.getDefaultLogger().info("Ark biz {} will start with main class {} from envs", getIdentity(), mainClassFromEnv);
+            }
+        }
+
         if (mainClass == null) {
             throw new ArkRuntimeException(String.format("biz: %s has no main method", getBizName()));
         }
diff --git a/sofa-ark-parent/core/spi/src/main/java/com/alipay/sofa/ark/spi/constant/Constants.java b/sofa-ark-parent/core/spi/src/main/java/com/alipay/sofa/ark/spi/constant/Constants.java
index bbacca512..f194faa5b 100644
--- a/sofa-ark-parent/core/spi/src/main/java/com/alipay/sofa/ark/spi/constant/Constants.java
+++ b/sofa-ark-parent/core/spi/src/main/java/com/alipay/sofa/ark/spi/constant/Constants.java
@@ -203,6 +203,7 @@ public class Constants {
 
     public final static String       EMBED_STATIC_BIZ_IN_RESOURCE_ENABLE           = "sofa.ark.embed.static.biz.in.resource.enable";
     public final static String       ACTIVATE_NEW_MODULE                           = "activate.new.module";
+    public final static String       BIZ_MAIN_CLASS                                = "sofa.ark.biz.main.class";
 
     /**
      * uninstall the biz if it starts up failed