apt-get install 安装的，不是源码包安装的mysql [b]1 修改mysql的配置文件[/b] /etc/mysql/conf.d/mysql.cnf 在[mysql]的下方加入如下语句:(注：这个文件下没有配置，只有【mysql】) no-auto-rehash default-character-set=utf8 /etc/mysql/mysql.conf.d/mysqld.cnf 在[mysqld]下加入 socket = /var/run/mysqld/mysqld.sock port = 3306 character-set-server=utf8 （这里是server，之前有的版本是set） 重启mysql: sudo /etc/init.d/mysql restart 查看字符集 mysql> show variables like '%char%'; +--------------------------+----------------------------+ | Variable_name            | Value                      | +--------------------------+----------------------------+ | character_set_client     | utf8                       | | character_set_connection | utf8                       | | character_set_database   | utf8                       | | character_set_filesystem | binary                     | | character_set_results    | utf8                       | | character_set_server     | utf8                       | | character_set_system     | utf8                       | | character_sets_dir       | /usr/share/mysql/charsets/ | +--------------------------+----------------------------+ 8 rows in set (0.00 sec)  设置之后如果之前的数据库已经创建了，只能删除重新创建了。