Motor monitoring protector

The utility model relates to a motor monitoring protector and aims to regular monitoring protection on a three-phase motor. The motor monitoring protector comprises an upper machine, a lower machine, chips, a communication integrated module, a display panel, a switch power supply, an operation module, a monitoring protection circuit, a signal current transmitting circuit and a current transformer, wherein the chips are connected with a circuit board in the upper machine and the lower machine; the lower machine is further internally provided with the monitoring protection circuit, the communication integrated module and a signal transmitting circuit are used for carrying out RS-485 communication, the lower machine is further internally provided with the switch power supply and a control relay both of which are connected with a circuit board, an outside socket and a connection opening are further arranged on the inner circumference of the lower machine and are connected with the circuit board, and the circumfer