Abstract: In this article, the construction status of tension stringing and the working environment of the traction machine are analyzed, and the working characteristics of the tracked self-propelled traction machine are explored; then requirements for the transmission system are proposed from aspects of the matching of torque and speed, the conversion and coordination of traction and walking conditions. Taking a tracked self-propelled hydraulic traction machine as an example, the parameter matching calculations on the main components are carried out to complete the design and verification of the hydraulic system of the traction machine. It is verified through experiments that the dynamic performance meets the design requirements. After practical application, the technical integrity of the mechanism has been verified. The research and development achievements have the value of improving the efficiency of on-site equipment transfer and reducing the transfer costs.