Because of the existence of soil adhesion characteristics,it often causes soil to adhere to the surface of working parts,which increases the energy consumption of equipment and even prevents normal operation. With the improvement of modern agricultural mechanization and the increasing variety of soil-engaging components,researchers put forward higher requirements for designing and optimizing soil-engaging components. In this study,a paddy field soil adhesion measuring instrument was designed. The single factor experiment was carried out with normal pull-out velocity vn,tangential velocity vτ and paddy field soil spatial depth as influencing factors. The factors affecting the contact interface adhesion were preliminarily obtained. The results showed that the soil adhesion increased with the increase of normal drawing speed vn and tangential velocity vτ,and first increased and then decreased with the increase of spatial depth of paddy field soil.