The article proposes a method for predicting interprovincial environmental efficiency based on the DEA model. Firstly, the characteristics of various DEA models were compared and analyzed, and then the DEA model was used to predict interprovincial environmental efficiency in China through examples. The results indicate that with the continuous improvement of provincial industrial environmental efficiency, the impact of provincial environmental protection investment on environmental efficiency shows significant fluctuations. The fluctuation range is controlled between [0.28, 0.26]. The results also indicate that the more severe environmental pollution, the lower environmental efficiency.