The utility model relates to a PLC module connection terminal distribution board. Connection terminal rows and a cable socket connected with a PLC module cable in an inserted manner are arranged on a molding material base of the terminal distribution board, and pins in the cable socket are correspondingly communicated with terminals of the connection terminal rows. Connection between a PLC module and the terminal distribution board via standard cables and cable plugs is realized on the cable socket side in the technical scheme, and the PLC module connection terminal distribution board has the advantages of reduction of connection time of control cabinet wire distribution, more importantly avoidance of wire distribution errors, and great conveniences of connection and use.