A method for adjusting transmission power of a mobile terminal, characterized in that the method comprises: a mobile terminal detecting information about a current terminal location according to an operating environment where a user is currently located; obtaining pre-configured power parameter information corresponding to the current terminal location according to the information about the current terminal location and one or more location information transmission power correlation policy tables internally installed in the mobile terminal; and actively adjusting a transmission power parameter according to the obtained pre-configured power parameter information; wherein obtaining the pre-configured power parameter information corresponding to the current terminal location according to the information about the current terminal location and the one or more location information transmission power correlation policy tables internally installed in the mobile terminal is: a mobile terminal database management system configuring one or more location information transmission power correlation policy tables, wherein the one or more location information transmission power correlation policy tables are determined according to the number of base stations distributed in a location or network optimization parameter information, and a matching relationship between location information and the pre-configured power parameter information is determined according to related geographical properties; and obtaining the pre-configured power parameter information corresponding to the current terminal location according to the information about the current terminal location and the one or more location information transmission power correlation policy tables internally installed in the mobile terminal. a mobile terminal detecting information about a current terminal location according to an operating environment where a user is currently located; obtaining pre-configured power parameter information corresponding to the current terminal location according to the information about the current terminal location and one or more location information transmission power correlation policy tables internally installed in the mobile terminal; and actively adjusting a transmission power parameter according to the obtained pre-configured power parameter information; wherein obtaining the pre-configured power parameter information corresponding to the current terminal location according to the information about the current terminal location and the one or more location information transmission power correlation policy tables internally installed in the mobile terminal is: a mobile terminal database management system configuring one or more location information transmission power correlation policy tables, wherein the one or more location information transmission power correlation policy tables are determined according to the number of base stations distributed in a location or network optimization parameter information, and a matching relationship between location information and the pre-configured power parameter information is determined according to related geographical properties; and obtaining the pre-configured power parameter information corresponding to the current terminal location according to the information about the current terminal location and the one or more location information transmission power correlation policy tables internally installed in the mobile terminal. a mobile terminal database management system configuring one or more location information transmission power correlation policy tables, wherein the one or more location information transmission power correlation policy tables are determined according to the number of base stations distributed in a location or network optimization parameter information, and a matching relationship between location information and the pre-configured power parameter information is determined according to related geographical properties; and obtaining the pre-configured power parameter information corresponding to the current terminal location according to the information about the current terminal location and the one or more location information transmission power correlation policy tables internally installed in the mobile terminal.