Electric energy signal acquisition device for three-phase four-wire outdoor power transmission line

The invention provides an electric energy signal acquisition device for a three-phase four-wire outdoor power transmission line, which comprises a detection head and an operation rod which are connected with each other, the operation head comprises a base, a plurality of mutual inductance coils corresponding to three phases and four wires of the outdoor power transmission line are arranged on the base in parallel, puncture needles are arranged in the mutual inductance coils, and the puncture needles are connected with the detection head. The puncture needle can be embedded into a three-phase four-wire outdoor power transmission line; the top end of the operating rod is connected with the lower end of the base; the detection head further comprises a current and voltage sampling module which is used for collecting electric energy parameters in the three-phase four-wire outdoor power transmission line connected with the current and voltage sampling module and testing the electric energy parameters through a pres