diff --git a/docs/reference/application.md b/docs/reference/application.md
index cf6b2131d..384e0b883 100644
--- a/docs/reference/application.md
+++ b/docs/reference/application.md
@@ -19,9 +19,7 @@ class Application {
 ##### Examples
 
 ```ts
-app.db.on('xxx', () => {
-
-});
+app.db.close();
 ```
 
 ## app.resourcer
@@ -92,13 +90,22 @@ app.i18n.t('Hello');
 
 等同于 app.resourcer.registerActions()
 
+```ts
+app.actions({
+  async test(ctx, next) {
+    ctx.body = 'hello world';
+    await next();
+  },
+});
+```
+
 ## app.resource() <Badge>待完善</Badge>
 
 等同于 app.resourcer.define()
 
 ## app.parse()
 
-等同于 app.cli.parse()
+等同于 app.cli.parseAsync()
 
 ## app.load() <Badge>待完善</Badge>
 
diff --git a/docs/reference/context.md b/docs/reference/context.md
index 4dfaae59a..a170d63e0 100644
--- a/docs/reference/context.md
+++ b/docs/reference/context.md
@@ -26,6 +26,85 @@ async (ctx, next) {
 
 ## ctx.action <Badge>待完善</Badge>
 
+### action.params
+
+资源标识定位
+
+- `associatedName`
+- `associatedIndex`
+- `resourceName`
+- `resourceIndex`
+
+request body
+
+- `values` bodyparser 之后的 body
+
+request query
+
+- `filter`
+- `fields`
+- `pageSize`
+- `page`
+- `sort`
+- 其他参数
+
+### action.mergeParams();
+
+```ts
+interface mergeParams {
+  (params: ActionParams, strategies?: MergeStrategies): void;
+}
+
+type MergeStrategyType = 'merge' | 'deepMerge' | 'overwrite' | 'andMerge' | 'orMerge' | 'intersect' | 'union';
+type MergeStrategyFunc = (x: any, y: any) => any;
+type MergeStrategy = MergeStrategyType | MergeStrategyFunc;
+
+interface MergeStrategies {
+  [key: string]: MergeStrategy;
+}
+```
+
+合并策略
+
+- `merge` 浅合并
+- `deepMerge` 深层合并（默认）
+- `andMerge` and 合并，用于 filter 参数
+- `orMerge` or 合并，用于 filter 参数
+- `overwrite` 覆盖
+- `intersect` 交集，用于 array 类型，也支持逗号间隔的字符串数组
+- `union` 并集，去重，用于 array 类型，也支持逗号间隔的字符串数组
+
+特定参数的默认合并策略
+
+```ts
+{
+  filter: 'andMerge',
+  fields: 'intersect',
+  appends: 'union',
+  except: 'union',
+  whitelist: 'intersect',
+  blacklist: 'union',
+  sort: 'overwrite',
+}
+```
+
+示例
+
+```ts
+ctx.action.mergeParams({
+  filter: { b: 'b1' },
+  fields: 'a1,b1,c1',
+  key1: 'abcdef',
+}, {
+  // filter 参数采用 orMerge 策略
+  filter: 'orMerge',
+  // fields 参数采用 intersect 策略
+  fields: 'intersect',
+  // key1 自定义函数
+  key1: (x, y) => y.split(''),
+});
+```
+
 ## ctx.i18n
 
 app.i18n 的 cloneInstance。详情见 [I18next API](https://www.i18next.com/overview/api)
diff --git a/docs/reference/filter-operators.md b/docs/reference/filter-operators.md
index 8918ec946..9261b3f2a 100644
--- a/docs/reference/filter-operators.md
+++ b/docs/reference/filter-operators.md
@@ -25,7 +25,7 @@ toc: menu
 - empty
 - notEmpty
 
-## select
+## enum
 
 - eq
 - ne
@@ -34,7 +34,7 @@ toc: menu
 - empty
 - notEmpty
 
-## multipleSelect
+## array
 
 - match
 - notMatch