The invention discloses an electric automobile charging device safety monitoring system, comprising a controller and a safety data detection device, a protection device and a network data transmission device which are connected to the controller; the network data transmission device is connected to a monitoring platform which is connected to a remote terminal; the safety data detection device comprises a temperature sensor, a humidity sensor, a smoke sensor and charging automobile BMS; the temperature sensor, the hunudity sensor and the smoke sensor collect environment parameters of the charging device and transmit the environment parameters to the controller; and the charging automobile BMS transmits the safety detection data of the automobile battery to the controller. The electric automobile charging device safety monitoring system adopts various sensor and the automobile BMS as a safety data detection device, performs safety monitoring on the charging device, and can effectively prevent the accident in which the battery or the electric automobile is on fire because of improper charging. Besides, the safety of the charging device itself can also be guaranteed, which can be a beneficial complement to the electric automobile safety monitoring.