Deep-well pump power line carrier communication device

The utility model provides a power line carrier communication device for a deep-well pump, and belongs to the technical field of electronics. The frequency converter solves the problems that an existing frequency converter is arranged in a water pump under water, and a user is difficult to obtain and monitor operation information of the frequency converter. The deep-well pump power line carrier communication device comprises a power supply cable, a ground power line carrier module and an underground power line carrier module, the ground power line carrier module and the underground power line carrier module are connected with the power supply cable, and a deep-well pump comprises a frequency converter and a variable frequency motor connected with the frequency converter. The power supply end of the underground power line carrier module is connected with an isolation switch power supply used for providing direct-current low voltage for the underground power line carrier module, the isolation switch power suppl