Abstract: With rapid development of China's "three electricity" technology, new energy electric agricultural machinery has also mushroomed rapidly．The proposal of one source multipurpose is an innovative development model to solve problems of seasonal idleness, low utilization rate and inability to interact with new power system of rural power grid．It has characteristics of clean and environmental protection, high degree of mathematical intelligence and easy networking．Focused on key technologies, application scenarios, implementation paths, business models and other problems and development prospects of new energy electric agricultural machinery one source multipurpose, network questionnaire surveys for domestic agricultural machinery, agriculture, electricity, power grids and other related practitioners were conducted．From perspective of development potential of one source multipurpose and cognitive situation of integration of rural power grids and agricultural machinery, based on research results, one source multipurpose enabling electric energy substitution potential, application scenarios, comprehensive benefits of integration of rural power grids and agricultural machinery was studied and discussed．Implementation path and business model of one source multipurpose was analyzed．Key technologies and supporting policy suggestions for one source multipurpose agricultural machinery integration innovation model were proposed．Conclusions showed that, development model of one source multipurpose of new energy electric agricultural machinery has good economic and environmental benefits, and its development prospects were generally optimistic．It has positive significance for implementing dual carbon goals and rural revitalization strategies．In the future, it is still necessary to carry out collaborative research and application of key technologies for integration and interaction between new energy electric agricultural machinery and power grid, and explore a sustainable and mutually beneficial business model．