Cable underground input device and cable measurement excitation calibration platform

The utility model discloses a cable underground input device and a cable measurement excitation calibration platform. The cable underground input device comprises a guide mechanism and a clamping mechanism (10). Wherein the guide mechanism is connected to one end of a cable, and the clamping mechanism (10) is connected to the other end of the cable; the guide mechanism and the clamping mechanism (10) are used for keeping the cable in a straightened state together; the guide mechanism is also used for guiding the cable into the well (1); the cable measurement excitation calibration platform comprises the cable underground input device and a platform mechanism. The cable underground input device is used for guiding the cable to enter the well (1) through the platform mechanism; the platformmechanism is connected with a magnetic marker and a magnetic exciter; the problems of large measurement error, high labor intensity and long construction time of the length of the underground loggingcable in the existing manu