The invention discloses a power supply equipment monitoring system. The power supply equipment monitoring system comprises circuit detection terminals, a monitoring switchboard, a tour unmanned plane, and cellphones, the circuit detection terminals are arranged on transformers and a terminal of a line section switch, the tour unmanned plane is distributed on a power supply line, the tour unmanned plane is provided with a camera, monitoring software is installed in each cellphone, the monitoring software can display a power supply equipment circuit diagram, receive fault data sent by the monitoring switchboard, and display the fault data and fault points sent to the monitoring switchboard in the power supply equipment circuit diagram, and the circuit detection terminals and the tour unmanned plane are connected with the monitoring switchboard through a wireless data module. According to the system, the fault points of the power supply system and fault reasons can be visually reflected, maintenance personnel can obtain the fault reasons and fault positions without reaching the site, corresponding tools can be carried in advance, corresponding maintenance personnel is dispatched, the efficiency for maintenance work is effectively improved, and the property safety of people is guaranteed.