Mobile hand-held type electric energy quality parameter inspection system

A mobile hand-held type electric energy quality parameter inspection system comprises a node data sending terminal and a hand-held inspection terminal. The node data sending terminal is arranged on a power grid node to be detected. The node data sending terminal comprises a first power supply module, a three-phase voltage sampling input module, a three-phase current sampling input module, a three-phase electric data processing module, a first MCU control module and a first wireless communication module. The first power supply module is connected with the first MCU control module, the data processing module and the first wireless communication module. The three-phase voltage sampling input module and the three-phase current sampling input module are both connected with the three-phase electric data processing module. The three-phase electric data processing module is connected with the first MCU control module. The first MCU control module is connected with the first wireless communication module. The hand-held inspection terminal comprises a second power supply module, a second MCU control module, a second wireless communication module, a keyboard input module and a display module. The system which can have the working efficiency improved and the cost lowered further makes safety hazards eliminated.