The embodiment of the invention discloses a safety control device and method for a charging service vehicle. The safety control device comprises a whole vehicle controller, a power source module and a control module, wherein the whole vehicle controller is connected with a detection signal and used for outputting a control signal according to the state of the detection signal to control the working state of the safety control device of the charging service vehicle; the power source module is connected with the whole vehicle controller and used for controlling whether other devices are charged or not according to the control signal output by the whole vehicle controller; the control module is connected with the whole vehicle controller and used for controlling executive parts of the charging service vehicle according to the control signal output by the whole vehicle controller to achieve switching of the charging service vehicle in the different working states. According to the safety control device and method for the charging service vehicle in the embodiment, driving of the charging service vehicle in the charging state is avoided.