Based on Dixit-Stiglitz model, the paper analyzes the internal mechanism that producer services enhance the agricultural modernization efficiency, uses non-oriented VRS SBM super-efficiency model to measure agricultural mod- ernization efficiency, and empirically estimates the endogenous relationship of producer services and agricultural moderni- zation efficiency between different regions according to the panel data of 31 provinces, municipalities and autonomous re- gions. The results show that producer services and agricultural modernization efficiency promote mutually, mutual promo- tion ef...