diff --git a/api/@ohos.inputMethodEngine.d.ts b/api/@ohos.inputMethodEngine.d.ts
index 6cd44831d..7fbea7892 100644
--- a/api/@ohos.inputMethodEngine.d.ts
+++ b/api/@ohos.inputMethodEngine.d.ts
@@ -1301,6 +1301,54 @@ declare namespace inputMethodEngine {
      * @since 12
      */
     getCallingWindowInfo(): Promise<WindowInfo>;
+
+    /**
+     * Insert the provided text as preview text.
+     *
+     * @param { string } text - the text to be previewed.
+     * @param { Range } range - the range of the text to be replaced by the preview text.
+     * @returns { Promise<void> } the promise returned by the function.
+     * @throws { BusinessError } 401 - parameter error.
+     * @throws { BusinessError } 12800003 - input method client error.
+     * @throws { BusinessError } 12800011 - text preview is not supported.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @since 12
+     */
+    setPreviewText(text: string, range: Range): Promise<void>;
+
+    /**
+     * Insert the provided text as preview text.
+     *
+     * @param { string } text - the text to be previewed.
+     * @param { Range } range - the range of the text to be replaced by the preview text.
+     * @throws { BusinessError } 401 - parameter error.
+     * @throws { BusinessError } 12800003 - input method client error.
+     * @throws { BusinessError } 12800011 - text preview is not supported.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @since 12
+     */
+    setPreviewTextSync(text: string, range: Range): void;
+
+    /**
+     * Finish the text preview.
+     *
+     * @returns { Promise<void> } the promise returned by the function.
+     * @throws { BusinessError } 12800003 - input method client error.
+     * @throws { BusinessError } 12800011 - text preview is not supported.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @since 12
+     */
+    finishTextPreview(): Promise<void>;
+
+    /**
+     * Finish the text preview.
+     *
+     * @throws { BusinessError } 12800003 - input method client error.
+     * @throws { BusinessError } 12800011 - text preview is not supported.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @since 12
+     */
+    finishTextPreviewSync(): void;
   }
 
   /**
@@ -1674,6 +1722,15 @@ declare namespace inputMethodEngine {
      * @since 8
      */
     readonly enterKeyType: number;
+
+    /**
+     * Indicates whether the editor supports the text preview.
+     *
+     * @type { boolean }
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @since 12
+     */
+    isTextPreviewSupported: boolean;
   }
 
   /**
diff --git a/build-tools/api_check_plugin/plugin/dictionaries_supplementary.txt b/build-tools/api_check_plugin/plugin/dictionaries_supplementary.txt
index 51c4d02ed..95c3f5df5 100644
--- a/build-tools/api_check_plugin/plugin/dictionaries_supplementary.txt
+++ b/build-tools/api_check_plugin/plugin/dictionaries_supplementary.txt
@@ -657,6 +657,7 @@ preresolve
 presentationml
 presently
 presistent
+previewed
 prevgroup
 prikey
 primaries