Abstract: This paper analyzes the output characteristics of clean energy, then a calculation method of clean power integration capacity based on power balance is proposed through all-round analysis of load peak valley differential rate, system spare capacity, ability of various powers peak load regulation and ability of connect lines regulation, main factors that affecting the receptivity are analyzed furtherly. Through the analysis of the foreign clean energy acceptance, this paper summarizes the typical methods of acceptance and the reference significance for our country. Finally, some measures to improve China's clean energy acceptance capacity are put forward in combination with the main problems existing in our country. The results of this study can provide a reference for the research and development of clean energy acceptance capacity.