diff --git a/api/application/abilityDelegator.d.ts b/api/application/abilityDelegator.d.ts
index 72408dd34b8537ff2813565c1c8e45b91e4e8386..156c222b32410b171b7085f14a30e416f77cfc68 100644
--- a/api/application/abilityDelegator.d.ts
+++ b/api/application/abilityDelegator.d.ts
@@ -132,10 +132,19 @@ export interface AbilityDelegator {
      * @syscap SystemCapability.Ability.AbilityRuntime.Core
      * @param msg Log information
      */
-    printSync(msg: string): void;
     print(msg: string, callback: AsyncCallback<void>): void;
     print(msg: string): Promise<void>;
 
+    /**
+     * Prints log information to the unit testing console.
+     * The total length of the log information to be printed cannot exceed 1000 characters.
+     *
+     * @since 9
+     * @syscap SystemCapability.Ability.AbilityRuntime.Core
+     * @param msg Log information
+     */
+     printSync(msg: string): void;
+
     /**
      * Execute the given command in the aa tools side.
      *