The paper aims to propose an asymmetric SPR+UPS+UPR parallel mechanism and use it for labeling and spraying code of different types of products. Firstly, SolidWorks was used for 3d modeling of the mechanism. Then, the degree of freedom of the mechanism was calculated by the helical theory and the modified G-K formula. The inverse kinematics of the mechanism was obtained by the closed vector loop method. Finally, the reachable workspace of the mechanism was obtained by 3d dynamic method and MATLAB programming. The UPR+SPR+UPS parallel mechanism had 3 degrees of freedom in two revolutions and one shift, and the kinematic performance was good. The mechanism can be used for labeling and spraying code of different types of products. It reduces costs and improves efficiency.