Focusing on the replacement problem of heat tracing pipes in current oil pipeline,an intelligent hydraulic extubating machine satisfying the work needs of the oil industry was proposed.The composition and working principle of the hydraulic electronic control system were expounded,and the control logic of the electric control system was illustrated.The extubating machine adopted a complete set of explosion-proof devices,which could be safely applied to the high-risk environment of oil and gas mixing.Though designing an adaptive differential switching system,it could satisfy the adaptive switching between high load and high speed.It had the function of HMI model,which was convenient for real-time control and monitoring of the working state of the extubating machine.The experiment shows that the extubating machine has high working efficiency,strong reliability and high safety.