The invention provides a charging pile communication compatibility detection device and method, and the device comprises a CAN transceiver which is connected with a charging pile communication signalloop and analysis equipment, and is used for receiving communication signals of two contacts of a charging gun plug in the charging pile communication signal loop, and sending the communication signalto analysis equipment; the analysis device which is used for receiving the communication signal, analyzing the received communication signal to obtain the analyzed signal content and format; and obtaining a charging pile communication compatibility detection result according to the analyzed signal content and format. According to the embodiment of the invention, the communication compatibility ofthe charging pile can be detected, and the efficiency is high.