The work aims to solve the problem of green package design evaluation and achieve the judgment of package “green degree” scientifically. The connotation of green package was introduced and the corresponding evaluation indexes were determined. A method of green package evaluation was put forward based on the fuzzy comprehensive evaluation model. The determination methods of factor set, evaluation set, weight set and membership function were discussed in detail. Finally, an example was given to illustrate the specific evaluation process. The example results showed that the evaluation method described had a simple calculating process, high degree of differentiation and accurate evaluation results. This method can improve the accuracy of green package design evaluation and help improve the environmental protection performance of package design.