Cathode protection data collecting device for buried pipeline

The invention discloses a cathode protection data collecting device for a buried pipeline. The cathode protection data collecting device for the buried pipeline comprises a control unit, a voltage detection unit, a current detection unit and a polarized probe. The voltage detection unit and the current detection unit are in communication connection with the control unit. The voltage detection unit and the current detection unit are connected with the polarized probe. The current detection unit is further connected with the buried pipeline. The voltage information detected by the voltage detection unit is transmitted to the control unit. The direct current and/or alternating current information detected by the current detection unit is transmitted to the control unit. The control unit computes and processes the received voltage information and direct current and/or alternating current information and then stores and/or transmits the information to an upper computer. The cathode protection data collecting device for the buried pipeline guarantees the timeliness, reliability and authenticity of pipeline stray current and cathode protection test data by adopting a test probe and a data collecting recorder to collect parameters.