diff --git a/build.sh b/build.sh
index f4c2601..95b0198 100755
--- a/build.sh
+++ b/build.sh
@@ -109,14 +109,22 @@ PY
 echo "==> [6/9] per-module install: ① json2ddl建表 ② json/build.sh ③ wwwroot软链 ④ 数据导入"
 for m in ${BUSINESS_MODULES}; do
     echo "  -- ${m}"
-    # ① 建表：模块 models 是唯一事实源；json2ddl 输出 DROP+CREATE，每次部署权威重建
-    (cd "pkgs/${m}/models" && "${VENV}/bin/json2ddl" mysql .) > "/tmp/${m}_ddl.sql" \
-        || { echo "ERROR: ${m} json2ddl failed" >&2; exit 1; }
-    [ -s "/tmp/${m}_ddl.sql" ] || { echo "ERROR: ${m} DDL empty" >&2; exit 1; }
-    mysql -h "${DB_HOST}" -P "${DB_PORT}" -u "${DB_USER}" -p"${DB_PASSWORD}" "${DB_NAME}" \
-        < "/tmp/${m}_ddl.sql" || { echo "ERROR: ${m} create tables failed" >&2; exit 1; }
-    # ② CRUD 页面（模块仓库自带 json/build.sh）
-    (cd "pkgs/${m}/json" && bash build.sh) || { echo "ERROR: ${m} json/build.sh failed" >&2; exit 1; }
+    # ① 建表：模块 models 是唯一事实源；无 models/ 的纯引擎模块跳过
+    if [ -d "pkgs/${m}/models" ]; then
+        (cd "pkgs/${m}/models" && "${VENV}/bin/json2ddl" mysql .) > "/tmp/${m}_ddl.sql" \
+            || { echo "ERROR: ${m} json2ddl failed" >&2; exit 1; }
+        [ -s "/tmp/${m}_ddl.sql" ] || { echo "ERROR: ${m} DDL empty" >&2; exit 1; }
+        mysql -h "${DB_HOST}" -P "${DB_PORT}" -u "${DB_USER}" -p"${DB_PASSWORD}" "${DB_NAME}" \
+            < "/tmp/${m}_ddl.sql" || { echo "ERROR: ${m} create tables failed" >&2; exit 1; }
+    else
+        echo "    (no models/, skip DDL)"
+    fi
+    # ② CRUD 页面（模块仓库自带 json/build.sh）；无 json/ 跳过
+    if [ -d "pkgs/${m}/json" ]; then
+        (cd "pkgs/${m}/json" && bash build.sh) || { echo "ERROR: ${m} json/build.sh failed" >&2; exit 1; }
+    else
+        echo "    (no json/, skip CRUD gen)"
+    fi
     # ③ wwwroot 软链（非 cp）
     ln -sfn "../pkgs/${m}/wwwroot" "wwwroot/${m}"
     # ④ 初始化数据（有 data/*.xlsx 才导）