Abstract: There are some problems in most tea producing areas of China, such as complex terrain, unsuitable for large and medium-sized machinery operation. Through the development of a portable vacuum absorption tea collector, it can not only improve the efficiency of tea picking, reduce the labor cost, but also reduce the labor intensity. Taking vacuum adsorption as the research focus, the established three-dimensional model is used to get the regional model through the Boolean subtraction operation of the mesh generation software, and then the model is meshed with GAMBIT to get the grid quality information, that is, the distortion rate of 0.7-0.8 is 0.15% and the distortion rate of 0.8-1.0 is 0; Then, the boundary type and region type are defined, and the solution setting and parameter setting are carried out in FLUENT to realize the preprocessing of simulation. Finally, the vacuum adsorption simulation and tea garden experiment were compared.The results show that the absolute error between simulation and experimental data is less than 0.04 and the simulation accuracy is 0.0001 by comparing the vacuum degree and suction power, which verifies the feasibility and reliability of the tea picker design.