Based on the improved Rainbow model， this study clarified the concept and connotation of integrated management of chronic diseases， combed the current integrated management model of chronic diseases in China from three dimensions： macro， meso and micro， and concluded 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 and so on. It was 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.