diff --git a/src/modules/demo/service/cache.ts b/src/modules/demo/service/cache.ts
new file mode 100644
index 0000000..f47c197
--- /dev/null
+++ b/src/modules/demo/service/cache.ts
@@ -0,0 +1,18 @@
+import { Provide } from '@midwayjs/core';
+import { CoolCache } from '@cool-midway/core';
+
+/**
+ * 缓存
+ */
+@Provide()
+export class DemoCacheService {
+  // 数据缓存5秒
+  @CoolCache(5000)
+  async get() {
+    console.log('执行方法');
+    return {
+      a: 1,
+      b: 2,
+    };
+  }
+}