Environmental problems are always a burning problem all over the world. In recent years, the understanding of the impact of green supply chain integration (GCSI) on the performance of enterprises in all aspects has developed rapidly, and they are particularly interested in the environmental performance of enterprises. me. Therefore, this study wishes to clarify the impacts of GCSI on the environmental performance (EP) of Vietnam's agricultural sector, specifically rice, coffee and rubber producers in Vietnam through five mediate variables include investment cycle, green process innovation, green product innovation, green purchasing and green cooperation with customers. Using the PLS - SEM method, the study analyzed and evaluated based on survey data collected from 863 enterprises including rice, coffee and rubber producers in Vietnam. Research shows that GSCI can help companies increase their environmental performance to match the trend of the times and international integration through the five mediate variables mentioned above. In addition, multi-group analysis shows that there are differences in the impact of mediating factors on the environmental performance of enterprises. Finally, the moderate analysis shows that both firm size and the proportion of exported products play a role in moderating the impact of GSCI on EP.