Abstract: In order to solve problem of random and non-directional shedding of Cerasus humilis in carding process，a comb-type Cerasus humilis harvesting test bench was designed，and motor speed，bending angle of comb tooth，diameter of comb tooth arrangement radian and material of comb tooth were taken as influencing factors，collection rate were taken as evaluation indexes for experimental study.Test results showed that collection rate of comb-type Cerasus humilis harvesting test bench decreased with increase of motor speed and increase of elasticity and friction coefficient of comb tooth itself，and increased with increase of bending angle of comb tooth and diameter of comb tooth arrangement radian.Priority of influence of motor speed，bending angle of comb tooth，and diameter of comb tooth arrangement radian on collection rate was bending angle of comb tooth，diameter of comb tooth arrangement radian and motor speed.According to analysis of test results and problem of actual collection efficiency，optimal comb parameters were selected as：motor speed 25 r/min，comb tooth bending angle 120°，comb tooth were arranged according to radian diameter of 900 mm，collection rate of test bench was 95.03% under optimal comb parameters.This experimental study could provide data reference for research process of mechanized harvesting of Cerasus humilis.