Objective To save the design cost, increase the design efficiency, shorten the design cycle, a method for parameterized design of molded pulp packaging products was developed based on the popular 3-D design software SolidWorks. Methods Taking molded pulp shallow plate cushion as an example, using the method of macro recording in SolidWorks, after model building based on the logistic order characteristics, the design parameters for the packaging liner product of the molded pulp shallow plate cushion were separated, and the human-computer interaction was realized using the Visual Basic platform via SolidWorks API. Results Finally a plug-in was installed in SolidWorks, and rapid and accurate design of reliable molded pulp packing products could be realized by inputting the dimension parameters of the product in the pop-up window after running the software. Conclusion The parameterized design based on SolidWorks secondary development provided new direction and design ideas for efficient and reliable paper pulp molding.