Abstract-In the background of "One Belt and One Road" and "the setting up of the investment bank "will largely promote the development of small and medium-size enterprises in these areas. Small and medium-size enterprises support is a hot topic in the research field in recent years. Based on analysis of existing research, the paper summarized the definition, characteristics, development dilemmas and causes of small and medium-size enterprises; Then, classified systematically the main research results of small and medium-size enterprises support field; The results showed that: the academia puts too much emphasis on policy introduce, but overlooks the follow-up policy implementation, and lacks of empirical research. Finally, Future development about small and medium-size enterprises support was prospected accordingly.

Abstract-Innovation is the key to maintain core competitiveness for enterprises. In addition, innovation can make non-core enterprise become core enterprise, so it is vital for noncore enterprises and core enterprises. With the development of economic globalization and the deepening of reverse innovation, it is necessary to summarize the influencing factors of reverse innovation of non-core enterprises. On the basis of expounding the concept and characteristics of reverse innovation, this paper summarizes the motivation factors and resistance factors which influence the reverse innovation of non -core enterprises, and prospect the future research which will help non-core enterprises improve core competitiveness through innovation and enter the mainstream market.

Under the background of "One Belt and One Road" and "the setting up of the investment bank", the new emerging business and trade in the southeast and south Asia area begin to explore its management and cooperation mode. This will largely promote the development of small and medium-size enterprises (SMEs) in these areas. On the basis of reviewing the existing researches, the author summarizes the main factors of the execution efficiency of SMEs supportive policy. Based on the hierarchical strategy, the author points out the promotion countermeasures for execution efficiency of SMEs supportive policy from the aspect of macro, medium and micro perspective for the government, financial credit institutions, and SMEs itself, which all contribute to SMEs' development smoothly and rapidly.