Crawler tractor due to low center of gravity, adhesion coefficient is big, has good resistance to the slope stability of the tilting and falling, at the same time also has a small turning radius of mobility, gradeability strong cross country ability etc. Especially in hilly areas, where the arable land slope is large and the soil resistance is uneven, resulting in the poor stability, insecurity, uneven depth of operation and poor quality of operation of wheeled tractor on the slope. Farmers choose crawler tractor to plow, cultivate land and cultivate land operation, which will significantly improve the quality of operation.