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In order to solve the problems of low peeling rate and easy damage of garlic kernel, a combined garlic flexible peeling device was designed. The garlic peel was separated by the floating rubbing unit, and the vibration mechanism completed the transportation. The garlic peel was flexible peeled by the combined action of floating rubbing, vibrating brush and air blowing. According to the physical and mechanical characteristics of garlic, the key components such as rubbing mechanism, vibration mechanism, brushing mechanism, air blowing mechanism were designed. Through the dynamic analysis of garlic cloves in the floating rubbing unit and the vibrating screen, the main factors and value range that affected the peeling performance test were determined. Taking the rotational speed of the rubbing cylinder shaft, the comb brush spacing and the crank rotational speed as the test factors, and the peeling rate and the breakage rate as the test indexes, the three-factor three-level response surface test was carried out to obtain the optimal parameter combination of the rubbing cylinder shaft rotational speed, the comb brush spacing and the crank rotational speed, and the test verification was carried out. The test results showed that the optimal parameter combination was the rotation speed of rubbing roller shaft of 70.73r/min, vibration frequency of 6.68Hz, comb brush clearance of 18.00mm. Under the optimal parameter combination, the peeling rate of garlic cloves was 93.68% and the damage rate was 4.40%. The relative error between the test verification results and the optimization results was less than 5%, which met the requirements of garlic peeling.