diff --git a/src/agent/.gitignore b/src/agent/.gitignore
index a8d8cd8..60fe090 100644
--- a/src/agent/.gitignore
+++ b/src/agent/.gitignore
@@ -1,3 +1,5 @@
 build/
 *.egg-info/
 __pycache__/
+
+.env
diff --git a/src/agent/tests/docker-compose.yml b/src/agent/tests/docker-compose.yml
index 7c151f2..618bb7a 100644
--- a/src/agent/tests/docker-compose.yml
+++ b/src/agent/tests/docker-compose.yml
@@ -1,6 +1,6 @@
 services:
   bind:
-    image: ${BIND_IMAGE_TAG:-argus-bind9:e2e}
+    image: ${BIND_IMAGE_TAG:-argus-bind9:latest}
     container_name: argus-bind-agent-e2e
     volumes:
       - ./private:/private
diff --git a/src/agent/tests/scripts/01_bootstrap.sh b/src/agent/tests/scripts/01_bootstrap.sh
index cb364df..afb3d90 100755
--- a/src/agent/tests/scripts/01_bootstrap.sh
+++ b/src/agent/tests/scripts/01_bootstrap.sh
@@ -15,9 +15,17 @@ AGENT_HEALTH_DIR="$PRIVATE_ROOT/argus/agent/$AGENT_HOSTNAME/health"
 MASTER_PRIVATE_DIR="$PRIVATE_ROOT/argus/master"
 METRIC_PRIVATE_DIR="$PRIVATE_ROOT/argus/metric/prometheus"
 DNS_DIR="$PRIVATE_ROOT/argus/etc"
-BIND_IMAGE_TAG="${BIND_IMAGE_TAG:-argus-bind9:e2e}"
+BIND_IMAGE_TAG="${BIND_IMAGE_TAG:-argus-bind9:latest}"
 BIND_ROOT="$(cd "$MASTER_ROOT/../bind" && pwd)"
 
+ensure_image() {
+  local image="$1"
+  if ! docker image inspect "$image" >/dev/null 2>&1; then
+    echo "[ERROR] Docker image '$image' 未找到，请先运行统一构建脚本 (例如 ./build/build_images.sh) 生成所需镜像" >&2
+    exit 1
+  fi
+}
+
 mkdir -p "$AGENT_CONFIG_DIR"
 mkdir -p "$AGENT_HEALTH_DIR"
 mkdir -p "$MASTER_PRIVATE_DIR"
@@ -35,9 +43,8 @@ else
   echo "[WARN] bind update script missing at $BIND_ROOT/build/update-dns.sh"
 fi
 
-pushd "$MASTER_ROOT" >/dev/null
-./scripts/build_images.sh --tag argus-master:dev
-popd >/dev/null
+ensure_image "argus-master:dev"
+ensure_image "$BIND_IMAGE_TAG"
 
 AGENT_BINARY="$AGENT_ROOT/dist/argus-agent"
 
@@ -50,11 +57,6 @@ if [[ ! -x "$AGENT_BINARY" ]]; then
   exit 1
 fi
 
-# 中文提示：构建测试专用 bind9 镜像，确保解析服务可用
-pushd "$REPO_ROOT" >/dev/null
-docker build -f src/bind/build/Dockerfile -t "$BIND_IMAGE_TAG" .
-popd >/dev/null
-
 echo "$AGENT_BINARY" > "$TMP_ROOT/agent_binary_path"
 echo "$BIND_IMAGE_TAG" > "$TMP_ROOT/bind_image_tag"
 
diff --git a/src/agent/tests/scripts/02_up.sh b/src/agent/tests/scripts/02_up.sh
index 2d9de25..56c4cda 100755
--- a/src/agent/tests/scripts/02_up.sh
+++ b/src/agent/tests/scripts/02_up.sh
@@ -28,7 +28,7 @@ if [[ ! -x "$AGENT_BINARY" ]]; then
   exit 1
 fi
 
-BIND_IMAGE_TAG_VALUE="argus-bind9:e2e"
+BIND_IMAGE_TAG_VALUE="argus-bind9:latest"
 if [[ -f "$TMP_ROOT/bind_image_tag" ]]; then
   BIND_IMAGE_TAG_VALUE="$(cat "$TMP_ROOT/bind_image_tag")"
 fi