Positioning hook entering and leaving electric field in live mode and positioning device

The invention provides a positioning hook entering and leaving an electric field in a live mode and a positioning device, which belong to the technical field of live maintenance equipment. The positioning hook entering and leaving an electric field in a live mode comprises two hook pieces, a first connector and a second connector arranged at the upper part and the lower part of the hook piece, a limiting piece rotarily arranged on the first connector, a spring pin abutting against the limiting piece and a removing assembly for controlling movement of the spring pin, wherein the removing assembly comprises a slideway and a sliding member disposed on the hook piece; the slideway is arranged along the length direction of the spring pin and the end point is located at the pin end of the springpin; and the sliding member is provided with a hoisting assembly for connecting an aircraft. According to the positioning hook entering and leaving the electric field in the live mode and the positioning device, the aircraft