Abstract: At present, distributed photovoltaic is growing explosively in rural area. Firstly, this paper introduces the situation of the demonstration area, and points out the problems applying the urban grid transformation scheme to the rural grid; Secondly, from two aspects of low-voltage AC/DC grid structure and active support technology, it introduces the characteristics of AC/DC transformation scheme such as flexibility, controllable power flow and low cost. After that, it introduces the distributed energy aggregation platform from the two aspects of the system architecture and data fusion; Thirdly, scheme and rural power grid digitalization is verified through laboratory test data and field applications; Finally, the demonstration project of low-carbon digital transformation of rural power grids and the future development direction are analyzed and summarized.