Abstract: It is of great significance to promote the unity of economic benefits and green production behavior of large-scale farmers for the high quality of agriculture in China. Based on the survey data of scale farmers in Jiangsu Province, PSM model is used to test the impact of socialized service supply on economic benefits and green production of large-scale farmers from the perspective of service supply, and compared the impact of different service supply contents and different types of large-scale farmers. Results show that: (1) Service supply has positive impact on economic benefits and green production of large-scale farmers, which can not only increase the per capita income of households and enhance income stability, but also promote the use of two types of green production technologies: organic fertilizer and soil testing and formula fertilization. (2) There are differences in the impact of different service contents. Providing transplanting service, field management service and drying service can improve economic benefits; in terms of green production, only field management service play a significant role. (3) There are obvious group differences in the impact of service supply. After joining cooperatives, without credit constraints and using the Internet to provide services, the economic benefits and green production have improved more significantly. Therefore, it is suggested to encourage scale farmers to transform from single land scale operation type to "land + service" integration type; support the services development that are in short supply in market; Improve the development environment of scale farmers by improving the level of organization, informatization and alleviating financing constraints.