The utility model discloses a power terminal positioning system based on a mobile terminal. The system comprises a power terminal in an indoor distribution room and a mobile device which is arranged at the geographical position of the power terminal and is outside the indoor distribution room. The mobile device comprises a mobile device positioning module and a mobile device WIFI communication module. A power terminal WIFI communication module and a power terminal positioning data recording module are added to the power terminal. The mobile device WIFI communication module of the mobile device and the power terminal WIFI communication module of the power terminal communicate and are connected through a WIFI wireless network. The mobile device obtains the geographical position information of the power terminal through the mobile device positioning module and sends the information to the power terminal through the WIFI wireless network, and the power terminal stores the received geographical position information into the power terminal positioning data recording module. According to the power terminal positioning system, the power terminal is allowed to indirectly obtain the geographical position information to complete geographical position positioning.