diff --git a/.env.template b/.env.template
index 61d69991b..da27772d8 100644
--- a/.env.template
+++ b/.env.template
@@ -58,6 +58,7 @@ TAVILY_API_KEY=  # 获取搜索服务的 api key 请访问 https://app.tavily.co
 # SANDBOX_HTTPS_PROXY=http://host.docker.internal:7897
 
 # Docker backend 专用 (used when SANDBOX_PROVISIONER_BACKEND=docker/local)
+# 注意：网络名称已在 docker-compose.yml 中固定为 yuxi-know_app-network
 # SANDBOX_DOCKER_NETWORK=yuxi-know_app-network
 # SANDBOX_DOCKER_THREADS_HOST_PATH=
 # SANDBOX_DOCKER_SANDBOX_PREFIX=yuxi-sandbox
diff --git a/docker-compose.yml b/docker-compose.yml
index ca2373fcb..fa2c51aa7 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -434,3 +434,4 @@ services:
 networks:
   app-network:
     driver: bridge
+    name: ${SANDBOX_DOCKER_NETWORK:-yuxi-know_app-network}