Based on the improved Rainbow model, this paper clarifies the concept and connotation of integrated management of chronic diseases, combs the current integrated management model of chronic diseases in China from three dimensions: macro, meso and micro, and concludes that there are some problems in integrated management of chronic diseases in China, such as imperfect system, insufficient institutional collaboration,insufficient professional collaboration and inadequate service links. Problem. It is proposed to improve the integrated management of chronic diseases in China from four aspects: system integration, organization and organization integration, professional integration and service integration.