打开cmd:mysql -uroot -p 进入mysql依次执行下面语句 #修改加密规则 ALTER USER 'root'@'localhost' IDENTIFIED BY 'password' PASSWORD EXPIRE NEVER; #更新一下用户的密码 ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password'; #刷新权限 FLUSH PRIVILEGES; #重置密码 alter user 'root'@'localhost' identified by '123456'; 如果出现报错:Your password does not satisfy the current policy requirements 则执行: mysql> set global validate_password.policy=0;