Positioning system and positioning method for buried optical cable in well

The invention belongs to the technical field of seismic exploration, and particularly relates to a positioning system and a positioning method for an optical cable embedded in a well. The positioning system of the buried optical cable in the well comprises an armored optical cable, a positioning control device and positioning signal generating devices, the armored optical cable is provided with a plurality of positioning signal devices which are arranged at equal intervals in the length direction of the armored optical cable, the positioning control device is connected with the positioning signal generating devices, and the positioning signal generating devices are connected with the armored optical cable. The positioning control device controls the positioning signal generating devices to generate corresponding positioning signals respectively, and the positioning signals are collected by the signal collecting device. In the invention, after the armored optical cable is tripped into the shaft, the position o