diff --git a/packages/vstory-external/src/character/dynamic-line/dynamic-line-character.ts b/packages/vstory-external/src/character/dynamic-line/dynamic-line-character.ts
index 6aee702d..56411cbb 100644
--- a/packages/vstory-external/src/character/dynamic-line/dynamic-line-character.ts
+++ b/packages/vstory-external/src/character/dynamic-line/dynamic-line-character.ts
@@ -1,14 +1,14 @@
 import { CharacterChart } from '@visactor/vstory-core';
 import { DYNAMIC_LINE } from './constant';
 import type { IDynamicLineChartGraphicAttribute } from './dynamic-line-interface';
-import { DynamicLineRuntime } from './dynamic-line-runtime';
+import { DynamicLineRuntimeInstance } from './dynamic-line-runtime';
 
 export class DynamicLineCharacter extends CharacterChart<IDynamicLineChartGraphicAttribute> {
   static type = DYNAMIC_LINE;
 
   protected _initRuntime(): void {
     super._initRuntime();
-    this._runtime.push(new DynamicLineRuntime(this));
+    this._runtime.push(DynamicLineRuntimeInstance);
   }
 
   getDefaultAttribute(): Partial<IDynamicLineChartGraphicAttribute> {
diff --git a/packages/vstory-external/src/character/dynamic-line/dynamic-line-runtime.ts b/packages/vstory-external/src/character/dynamic-line/dynamic-line-runtime.ts
index 1a3e4550..f663fdd7 100644
--- a/packages/vstory-external/src/character/dynamic-line/dynamic-line-runtime.ts
+++ b/packages/vstory-external/src/character/dynamic-line/dynamic-line-runtime.ts
@@ -6,15 +6,10 @@ import type { ICharacterChart } from '@visactor/vstory-core/es/character/chart/i
 export class DynamicLineRuntime implements IChartCharacterRuntime {
   type = DYNAMIC_LINE;
 
-  protected declare _character: ICharacterChart;
-
-  constructor(character: ICharacterChart) {
-    this._character = character;
-  }
-
-  applyConfigToAttribute(): void {
-    const { bottomRange } = this._character.config.options as any;
-    const rawAttribute = this._character.getAttribute() as IDynamicLineChartGraphicAttribute;
+  applyConfigToAttribute(character: ICharacterChart): void {
+    const rawAttribute = character.getRuntimeConfig().getAttribute() as IDynamicLineChartGraphicAttribute;
+    const config = character.getRuntimeConfig().config;
+    const { bottomRange } = config.options as any;
     const { spec } = rawAttribute;
 
     const bottom = spec.scrollBar.find((item: any) => item.orient === 'bottom');
@@ -46,4 +41,4 @@ export class DynamicLineRuntime implements IChartCharacterRuntime {
   }
 }
 
-export const DynamicLineRuntimeInstance = new DynamicLineRuntime(null);
+export const DynamicLineRuntimeInstance = new DynamicLineRuntime();
diff --git a/packages/vstory-external/src/processor/dynamic-line/dynamic-line-visibility.ts b/packages/vstory-external/src/processor/dynamic-line/dynamic-line-visibility.ts
index 7d9cde7c..ca87e53e 100644
--- a/packages/vstory-external/src/processor/dynamic-line/dynamic-line-visibility.ts
+++ b/packages/vstory-external/src/processor/dynamic-line/dynamic-line-visibility.ts
@@ -27,7 +27,7 @@ export class DynamicLinePlayActionProcessor extends VChartBaseActionProcessor {
       const { duration, easing } = animation;
 
       const delta = end - start;
-      (instance.getStage().children[0] as any)
+      (instance.getStage().getChildren()[0] as any)
         .animate()
         .to({}, duration, easing)
         .onFrame((step: any, t: number) => {