High-speed well logging cable data communication device

The invention discloses a high-speed well logging cable data communication device, and belongs to the field of petroleum exploration. The high-speed well logging cable data communication device comprises a logging instrument data interface module, a modulation-demodulation module, an analog signal processing module, a cable analog signal driving module, a signal transformer and a power module. Thehigh-speed well logging cable data communication device realizes the function of high-speed data communication between a downhole logging instrument and a ground system through a well logging cable,and the communication rate can reach more than 1 Mbps on the 7000-meter well logging cable; and meanwhile, a 10/100M adaptive Ethernet or a CAN bus interface is adopted between the high-speed well logging cable data communication device and the logging instrument, the ground system and the downhole logging instrument are in the same network, the ground system can conveniently access the downhole logging instrument, and all