The utility model discloses a combined plug for industrial use distribution device, including block terminal, distributor, electric leakage circuit breaker, ground connection component and plug for industrial use, distributor, electric leakage circuit breaker and ground connection component are all installed in the block terminal, and each distributor all electrically conducts with an electric leakage circuit breaker to be connected, and each electric leakage circuit breaker all is connected with a plug for industrial use is electrically conductive, and each plug for industrial use is the electrically conductive ground connection component that is connected to all, each electric leakage circuit breaker all has the serial number that opens circuit, and each plug for industrial use all has a plug serial number, and the serial number that opens circuit of the electric leakage circuit breaker that is connected is numbered the samely or in relevancy with plug for industrial use's plug, all having seted up corresponding to the position of the switch of each electric leakage circuit breaker on the case lid of block terminal and having opened the buckler, seted up the through -hole on the side boxboard of block terminal, plug for industrial use passes the through -hole and installs in the outer wall of side boxboard. Construction electrical safety can effectively be standardized in the the device operation of need not unpacking, improves production efficiency.