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In the view of low operational efficiency and quality, high labor intensity of the existing semi-automatic and intermittent cellar cavitation mechanism for crops of hilly mountains, a cellar cavitation mechanism based on non-circular gear parallel fourbar mechanism was designed in order to ensure the agronomic requirements of deeper depth and consistent contour diameter of cavity. In addition, its kinematic model was stablished on the basis of elaborating the structure and working principle. The regression equation of response index and experimental factors for cavitation mechanism was established by combining the quadratic orthogonal rotation center combination test method and the human-computer interactive visual auxiliary interface of cavitation mechanism, which was established by the Matlab according to the kinematic model. Thus, the influence trend and interaction relationship were obtained by response surface simultaneously. In terms of the regression equation, multi-objective function optimization was used to obtain the optimal parameter combination of mechanism. According to the regression equation, the optimal parameters of cavitation mechanism, which was used to develop the prototype of cellar cavitation mechanism and field operation platform, could be achieved via the multi-objective function optimization. The field test results showed that the depth of cavitation was 181.7mm, the vertical angle of cavitation was 90.5°, the maximum diameter of cavity was 75.6mm, the minimum diameter of cavity was 68.5mm, the variance of cavity diameter was 7.5mm2 and the distance between cavities was 503.1mm. The optimized mechanism can meet the agronomic requirements for crops of hilly mountains transplanting cellar cavitation.