Abstract: Abstract:The concept and technical requirements of the selfpropelled hydraulic winch were introduced. The main structure, the working principle of the hydraulic system and the characteristics of the winch were analyzed. The engineering application of the winch shows that the performance of the selfpropelled hydraulic winch is excellent, and its indexes can meet the design requirements.

Key words: Keywords:selfpropelled hydraulic winch, full hydraulic control, fourwheel driving, overload protection, novoltage protection