diff --git a/api/@ohos.file.statvfs.d.ts b/api/@ohos.file.statvfs.d.ts
index ceadd105343efd2fb43134452e9bc7305e2e82d6..a6d01c8370fb246e2bd19d63c3ec3b222a4c3871 100644
--- a/api/@ohos.file.statvfs.d.ts
+++ b/api/@ohos.file.statvfs.d.ts
@@ -62,7 +62,7 @@ declare namespace statfs {
    * Get the number of free bytes on the specified path.
    *
    * @param { string } path - path
-   * @returns { Promise<number> } return Promise
+   * @returns { Promise<long> } return Promise
    * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
@@ -81,7 +81,7 @@ declare namespace statfs {
    * @since 20
    * @arkts 1.1&1.2
    */
-  function getFreeSize(path: string): Promise<number>;
+  function getFreeSize(path: string): Promise<long>;
 
   /**
    * Get the number of free bytes on the specified path.
@@ -108,7 +108,7 @@ declare namespace statfs {
    * Get the number of free bytes on the specified path.
    *
    * @param { string } path - path
-   * @param { AsyncCallback<number> } [callback] - callback
+   * @param { AsyncCallback<long> } [callback] - callback
    * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
@@ -127,7 +127,7 @@ declare namespace statfs {
    * @since 20
    * @arkts 1.1&1.2
    */
-  function getFreeSize(path: string, callback: AsyncCallback<number>): void;
+  function getFreeSize(path: string, callback: AsyncCallback<long>): void;
 
   /**
    * Get the number of free bytes on the specified path with sync interface.
@@ -154,7 +154,7 @@ declare namespace statfs {
    * Get the number of free bytes on the specified path with sync interface.
    *
    * @param { string } path - path
-   * @returns { number } return the number of free bytes on the specified path
+   * @returns { long } return the number of free bytes on the specified path
    * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
@@ -173,7 +173,7 @@ declare namespace statfs {
    * @since 20
    * @arkts 1.1&1.2
    */
-  function getFreeSizeSync(path: string): number;
+  function getFreeSizeSync(path: string): long;
 
   /**
    * Get the number of total bytes on the specified path.
@@ -200,7 +200,7 @@ declare namespace statfs {
    * Get the number of total bytes on the specified path.
    *
    * @param { string } path - path
-   * @returns { Promise<number> } return Promise
+   * @returns { Promise<long> } return Promise
    * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
@@ -219,7 +219,7 @@ declare namespace statfs {
    * @since 20
    * @arkts 1.1&1.2
    */
-  function getTotalSize(path: string): Promise<number>;
+  function getTotalSize(path: string): Promise<long>;
 
   /**
    * Get the number of total bytes on the specified path.
@@ -246,7 +246,7 @@ declare namespace statfs {
    * Get the number of total bytes on the specified path.
    *
    * @param { string } path - path
-   * @param { AsyncCallback<number> } [callback] - callback
+   * @param { AsyncCallback<long> } [callback] - callback
    * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
@@ -265,7 +265,7 @@ declare namespace statfs {
    * @since 20
    * @arkts 1.1&1.2
    */
-  function getTotalSize(path: string, callback: AsyncCallback<number>): void;
+  function getTotalSize(path: string, callback: AsyncCallback<long>): void;
 
   /**
    * Get the number of total bytes on the specified path with sync interface.
@@ -292,7 +292,7 @@ declare namespace statfs {
    * Get the number of total bytes on the specified path with sync interface.
    *
    * @param { string } path - path
-   * @returns { number } return the number of total bytes
+   * @returns { long } return the number of total bytes
    * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
@@ -311,7 +311,7 @@ declare namespace statfs {
    * @since 20
    * @arkts 1.1&1.2
    */
-  function getTotalSizeSync(path: string): number;
+  function getTotalSizeSync(path: string): long;
 }
 
-export default statfs;
+export default statfs;
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