diff --git a/src/area/index.js b/src/area/index.js
index 5558f2bff..7a6414c53 100644
--- a/src/area/index.js
+++ b/src/area/index.js
@@ -1,13 +1,6 @@
-import {
-  ref,
-  watch,
-  computed,
-  reactive,
-  nextTick,
-  onMounted,
-  getCurrentInstance,
-} from 'vue';
+import { ref, watch, computed, reactive, nextTick, onMounted } from 'vue';
 import { createNamespace, pick } from '../utils';
+import { usePublicApi } from '../composition/use-public-api';
 import { pickerProps } from '../picker/shared';
 import Picker from '../picker';
 
@@ -281,10 +274,7 @@ export default createComponent({
       }
     );
 
-    // @exposed-api
-    const vm = getCurrentInstance().proxy;
-    vm.reset = reset;
-    vm.getArea = getArea;
+    usePublicApi({ reset, getArea });
 
     return () => {
       const columns = state.columns.slice(0, +props.columnsNum);
diff --git a/src/calendar/components/Month.js b/src/calendar/components/Month.js
index 509121634..b2ecd2eaf 100644
--- a/src/calendar/components/Month.js
+++ b/src/calendar/components/Month.js
@@ -1,4 +1,4 @@
-import { ref, computed, getCurrentInstance } from 'vue';
+import { ref, computed } from 'vue';
 
 // Utils
 import { createNamespace, addUnit } from '../../utils';
@@ -18,6 +18,7 @@ import {
 // Composition
 import { useHeight } from '../../composition/use-rect';
 import { useToggle } from '../../composition/use-toggle';
+import { usePublicApi } from '../composition/use-public-api';
 
 // Components
 import Day from './Day';
@@ -246,13 +247,13 @@ export default createComponent({
       return <div ref={daysRef} />;
     };
 
-    // @exposed-api
-    const vm = getCurrentInstance().proxy;
-    vm.height = height;
-    vm.getDate = getDate;
-    vm.getTitle = getTitle;
-    vm.setVisible = setVisible;
-    vm.scrollIntoView = scrollIntoView;
+    usePublicApi({
+      height,
+      getDate,
+      getTitle,
+      setVisible,
+      scrollIntoView,
+    });
 
     return () => (
       <div class={bem('month')} ref={monthRef} style={monthStyle.value}>
diff --git a/src/composition/use-public-api.ts b/src/composition/use-public-api.ts
new file mode 100644
index 000000000..241c25209
--- /dev/null
+++ b/src/composition/use-public-api.ts
@@ -0,0 +1,7 @@
+import { getCurrentInstance } from 'vue';
+
+// expose public api
+export function usePublicApi(apis: Record<string, any>) {
+  const vm = (getCurrentInstance() as any).ctx;
+  Object.assign(vm, apis);
+}
diff --git a/src/count-down/index.js b/src/count-down/index.js
index 2e79f4971..5567ba867 100644
--- a/src/count-down/index.js
+++ b/src/count-down/index.js
@@ -5,12 +5,16 @@ import {
   onActivated,
   onDeactivated,
   onBeforeUnmount,
-  getCurrentInstance,
 } from 'vue';
+
+// Utils
 import { createNamespace } from '../utils';
 import { raf, cancelRaf } from '../utils/dom/raf';
 import { isSameSecond, parseTimeData, parseFormat } from './utils';
 
+// Composition
+import { usePublicApi } from '../composition/use-public-api';
+
 const [createComponent, bem] = createNamespace('count-down');
 
 export default createComponent({
@@ -136,11 +140,11 @@ export default createComponent({
 
     onBeforeUnmount(pause);
 
-    // @exposed-api
-    const vm = getCurrentInstance().proxy;
-    vm.start = start;
-    vm.reset = reset;
-    vm.pause = pause;
+    usePublicApi({
+      start,
+      reset,
+      pause,
+    });
 
     return () => (
       <div class={bem()}>
diff --git a/src/list/index.js b/src/list/index.js
index dac06963b..ccfdc896f 100644
--- a/src/list/index.js
+++ b/src/list/index.js
@@ -1,11 +1,4 @@
-import {
-  ref,
-  watch,
-  nextTick,
-  onUpdated,
-  onMounted,
-  getCurrentInstance,
-} from 'vue';
+import { ref, watch, nextTick, onUpdated, onMounted } from 'vue';
 
 // Utils
 import { createNamespace } from '../utils';
@@ -14,6 +7,7 @@ import { isHidden } from '../utils/dom/style';
 // Composition
 import { useRect } from '../composition/use-rect';
 import { useScroller } from '../composition/use-scroller';
+import { usePublicApi } from '../composition/use-public-api';
 import { useGlobalEvent } from '../composition/use-global-event';
 
 // Components
@@ -147,12 +141,9 @@ export default createComponent({
       }
     });
 
+    usePublicApi({ check });
     useGlobalEvent(scroller, 'scroll', check);
 
-    // @exposed-api
-    const vm = getCurrentInstance().proxy;
-    vm.check = check;
-
     return () => {
       const Content = slots.default?.();
       const Placeholder = (