In the process of financial development, the high threshold and credit asymmetry not only increase the difficulty and cost of financing in rural agriculture, but also hinder the upgrading of agricultural industrial structure and delay the development of agricultural modernization. With the development of information technology and the wide application of big data, digital inclusive finance has become an important path and inevitable choice to promote the upgrading and modernization of China's agricultural industrial structure. The project intends to use the entropy method to measure the development level of agricultural modernization; Based on the two-way fixed effect model, the paper explores the effect of digital inclusive finance on agricultural modernization. With the help of the intermediary effect model, this paper explores the internal mechanism of the influence of the digital inclusive financial policy on the development of rural modernization from the level of "the upgrading of agricultural industrial structure". Based on the empirical results, this paper analyzes the heterogeneity of the effects of digital financial inclusion policies from the two dimensions of rural location and rural characteristics, and explores an effective path to promote digital financial inclusion and industrial upgrading in rural areas with prominent internal differences, with a view to providing reference and basis for the formulation and implementation of future digital financial inclusion and agricultural modernization development policies.