Abstract: The roof distributed photovoltaic development of the whole county will have a significant impact on power grid planning, operation and maintenance, regulation and operation, construction and transformation, metering and trading, and company operation. In order to promote the healthy, orderly and safe development of roof distributed photovoltaic in the whole county, this paper analyzes the significance and status of roof distributed photovoltaic development in the whole county. Specific suggestions are put forward for the technical and management requirements of distribution network for the development of roof distributed photovoltaic in the whole county.