diff --git a/functions-and-operators/encryption-and-compression-functions.md b/functions-and-operators/encryption-and-compression-functions.md
index 1bb01cfda4b46..386d1cee2bdc7 100644
--- a/functions-and-operators/encryption-and-compression-functions.md
+++ b/functions-and-operators/encryption-and-compression-functions.md
@@ -16,7 +16,6 @@ TiDB supports most of the [encryption and compression functions](https://dev.mys
 | [`AES_ENCRYPT()`](#aes_encrypt)                               | Encrypt using AES                                 |
 | [`COMPRESS()`](#compress)                                     | Compress and return result as a binary string     |
 | [`MD5()`](#md5)                                               | Calculate MD5 checksum                            |
-| [`PASSWORD()`](#password)                                     | Calculate and return a password string            |
 | [`RANDOM_BYTES()`](#random_bytes)                             | Return a random byte vector                       |
 | [`SHA()`](#sha)                                               | Calculate an SHA-1 160-bit checksum               |
 | [`SHA1()`](#sha1)                                             | Calculate an SHA-1 160-bit checksum               |
@@ -139,29 +138,6 @@ SELECT MD5('abc');
 1 row in set (0.00 sec)
 ```
 
-### [`PASSWORD()`](https://dev.mysql.com/doc/refman/5.7/en/encryption-functions.html#function_password)
-
-> **Warning:**
->
-> This function is deprecated in MySQL 5.7 and removed in MySQL 8.0. It is deprecated in TiDB. It is not recommended to use this function.
-
-The `PASSWORD(str)` function calculates a password hash that can be used with the `mysql_native_password` authentication method.
-
-```sql
-SELECT PASSWORD('secret');
-```
-
-```
-+-------------------------------------------+
-| PASSWORD('secret')                        |
-+-------------------------------------------+
-| *14E65567ABDB5135D0CFD9A70B3032C179A49EE7 |
-+-------------------------------------------+
-1 row in set, 1 warning (0.00 sec)
-
-Warning (Code 1681): PASSWORD is deprecated and will be removed in a future release.
-```
-
 ### [`RANDOM_BYTES()`](https://dev.mysql.com/doc/refman/8.0/en/encryption-functions.html#function_random-bytes)
 
 The `RANDOM_BYTES(n)` function returns `n` random bytes.
@@ -426,4 +402,4 @@ Examples:
 
 * TiDB does not support the `STATEMENT_DIGEST()` and `STATEMENT_DIGEST_TEXT()` functions.
 * TiDB does not support the `kdf_name`, `salt`, and `iterations` arguments for [`AES_ENCRYPT()`](#aes_encrypt) and [`AES_DECRYPT`](#aes_decrypt) that MySQL added in MySQL 8.0.30.
-* MySQL does not implement the [`SM3()`](#sm3) function.
\ No newline at end of file
+* MySQL does not implement the [`SM3()`](#sm3) function.
diff --git a/sql-statements/sql-statement-set-password.md b/sql-statements/sql-statement-set-password.md
index 2d3ae1e3b6e2e..4bd8de7e024f0 100644
--- a/sql-statements/sql-statement-set-password.md
+++ b/sql-statements/sql-statement-set-password.md
@@ -8,11 +8,19 @@ aliases: ['/docs/dev/sql-statements/sql-statement-set-password/','/docs/dev/refe
 
 This statement changes the user password for a user account in the TiDB system database.
 
+> **Note:**
+>
+> It is recommended to change the password by using the [`ALTER USER`](/sql-statements/sql-statement-alter-user.md) statement as follows:
+>
+> ```sql
+> ALTER USER myuser IDENTIFIED BY 'mypassword';
+> ```
+
 ## Synopsis
 
 ```ebnf+diagram
 SetPasswordStmt ::=
-    "SET" "PASSWORD" ( "FOR" Username )? "=" ( stringLit | "PASSWORD" "(" stringLit ")" )
+    "SET" "PASSWORD" ( "FOR" Username )? "=" stringLit
 ```
 
 ## Examples
@@ -35,17 +43,6 @@ mysql> SHOW CREATE USER 'newuser';
 mysql> SET PASSWORD FOR newuser = 'test';
 Query OK, 0 rows affected (0.01 sec)
 
-mysql> SHOW CREATE USER 'newuser';
-+----------------------------------------------------------------------------------------------------------------------------------------------------------------------+
-| CREATE USER for newuser@%                                                                                                                                            |
-+----------------------------------------------------------------------------------------------------------------------------------------------------------------------+
-| CREATE USER 'newuser'@'%' IDENTIFIED WITH 'mysql_native_password' AS '*94BDCEBE19083CE2A1F959FD02F964C7AF4CFC29' REQUIRE NONE PASSWORD EXPIRE DEFAULT ACCOUNT UNLOCK |
-+----------------------------------------------------------------------------------------------------------------------------------------------------------------------+
-1 row in set (0.00 sec)
-
-mysql> SET PASSWORD FOR newuser = PASSWORD('test'); -- deprecated syntax from earlier MySQL releases
-Query OK, 0 rows affected (0.00 sec)
-
 mysql> SHOW CREATE USER 'newuser';
 +----------------------------------------------------------------------------------------------------------------------------------------------------------------------+
 | CREATE USER for newuser@%                                                                                                                                            |