diff --git a/api/.env.example b/api/.env.example
index fbf0b12f40..50607f5b35 100644
--- a/api/.env.example
+++ b/api/.env.example
@@ -540,6 +540,7 @@ WORKFLOW_LOG_CLEANUP_BATCH_SIZE=100
 
 # App configuration
 APP_MAX_EXECUTION_TIME=1200
+APP_DEFAULT_ACTIVE_REQUESTS=0
 APP_MAX_ACTIVE_REQUESTS=0
 
 # Celery beat configuration
diff --git a/api/configs/feature/__init__.py b/api/configs/feature/__init__.py
index 7cce3847b4..9c0c48c955 100644
--- a/api/configs/feature/__init__.py
+++ b/api/configs/feature/__init__.py
@@ -73,6 +73,10 @@ class AppExecutionConfig(BaseSettings):
         description="Maximum allowed execution time for the application in seconds",
         default=1200,
     )
+    APP_DEFAULT_ACTIVE_REQUESTS: NonNegativeInt = Field(
+        description="Default number of concurrent active requests per app (0 for unlimited)",
+        default=0,
+    )
     APP_MAX_ACTIVE_REQUESTS: NonNegativeInt = Field(
         description="Maximum number of concurrent active requests per app (0 for unlimited)",
         default=0,
diff --git a/api/services/app_generate_service.py b/api/services/app_generate_service.py
index bb1ea742d0..dc85929b98 100644
--- a/api/services/app_generate_service.py
+++ b/api/services/app_generate_service.py
@@ -135,7 +135,7 @@ class AppGenerateService:
         Returns:
             The maximum number of active requests allowed
         """
-        app_limit = app.max_active_requests or 0
+        app_limit = app.max_active_requests or dify_config.APP_DEFAULT_ACTIVE_REQUESTS
         config_limit = dify_config.APP_MAX_ACTIVE_REQUESTS
 
         # Filter out infinite (0) values and return the minimum, or 0 if both are infinite
diff --git a/api/services/rag_pipeline/pipeline_generate_service.py b/api/services/rag_pipeline/pipeline_generate_service.py
index e6cee64df6..f397b28283 100644
--- a/api/services/rag_pipeline/pipeline_generate_service.py
+++ b/api/services/rag_pipeline/pipeline_generate_service.py
@@ -53,10 +53,11 @@ class PipelineGenerateService:
 
     @staticmethod
     def _get_max_active_requests(app_model: App) -> int:
-        max_active_requests = app_model.max_active_requests
-        if max_active_requests is None:
-            max_active_requests = int(dify_config.APP_MAX_ACTIVE_REQUESTS)
-        return max_active_requests
+        app_limit = app_model.max_active_requests or dify_config.APP_DEFAULT_ACTIVE_REQUESTS
+        config_limit = dify_config.APP_MAX_ACTIVE_REQUESTS
+        # Filter out infinite (0) values and return the minimum, or 0 if both are infinite
+        limits = [limit for limit in [app_limit, config_limit] if limit > 0]
+        return min(limits) if limits else 0
 
     @classmethod
     def generate_single_iteration(
diff --git a/api/tests/integration_tests/.env.example b/api/tests/integration_tests/.env.example
index 46d13079db..e508ceef66 100644
--- a/api/tests/integration_tests/.env.example
+++ b/api/tests/integration_tests/.env.example
@@ -175,6 +175,7 @@ MAX_VARIABLE_SIZE=204800
 
 # App configuration
 APP_MAX_EXECUTION_TIME=1200
+APP_DEFAULT_ACTIVE_REQUESTS=0
 APP_MAX_ACTIVE_REQUESTS=0
 
 # Celery beat configuration
diff --git a/api/tests/test_containers_integration_tests/services/test_app_generate_service.py b/api/tests/test_containers_integration_tests/services/test_app_generate_service.py
index 0f9ed94017..476f58585d 100644
--- a/api/tests/test_containers_integration_tests/services/test_app_generate_service.py
+++ b/api/tests/test_containers_integration_tests/services/test_app_generate_service.py
@@ -82,6 +82,7 @@ class TestAppGenerateService:
             # Setup dify_config mock returns
             mock_dify_config.BILLING_ENABLED = False
             mock_dify_config.APP_MAX_ACTIVE_REQUESTS = 100
+            mock_dify_config.APP_DEFAULT_ACTIVE_REQUESTS = 100
             mock_dify_config.APP_DAILY_RATE_LIMIT = 1000
 
             mock_global_dify_config.BILLING_ENABLED = False
diff --git a/docker/.env.example b/docker/.env.example
index 0bfdc6b495..c9981baaba 100644
--- a/docker/.env.example
+++ b/docker/.env.example
@@ -133,6 +133,8 @@ ACCESS_TOKEN_EXPIRE_MINUTES=60
 # Refresh token expiration time in days
 REFRESH_TOKEN_EXPIRE_DAYS=30
 
+# The default number of active requests for the application, where 0 means unlimited, should be a non-negative integer.
+APP_DEFAULT_ACTIVE_REQUESTS=0
 # The maximum number of active requests for the application, where 0 means unlimited, should be a non-negative integer.
 APP_MAX_ACTIVE_REQUESTS=0
 APP_MAX_EXECUTION_TIME=1200
diff --git a/docker/docker-compose.yaml b/docker/docker-compose.yaml
index 0302612045..17f33bbf72 100644
--- a/docker/docker-compose.yaml
+++ b/docker/docker-compose.yaml
@@ -34,6 +34,7 @@ x-shared-env: &shared-api-worker-env
   FILES_ACCESS_TIMEOUT: ${FILES_ACCESS_TIMEOUT:-300}
   ACCESS_TOKEN_EXPIRE_MINUTES: ${ACCESS_TOKEN_EXPIRE_MINUTES:-60}
   REFRESH_TOKEN_EXPIRE_DAYS: ${REFRESH_TOKEN_EXPIRE_DAYS:-30}
+  APP_DEFAULT_ACTIVE_REQUESTS: ${APP_DEFAULT_ACTIVE_REQUESTS:-0}
   APP_MAX_ACTIVE_REQUESTS: ${APP_MAX_ACTIVE_REQUESTS:-0}
   APP_MAX_EXECUTION_TIME: ${APP_MAX_EXECUTION_TIME:-1200}
   DIFY_BIND_ADDRESS: ${DIFY_BIND_ADDRESS:-0.0.0.0}