Taiwan and China for the same culture and language, geographical proximity, Geographical proximity, climate and cultural proximity, there are economic and trade exchanges advantage. In particular, since the 1980s, Taiwan's traditional manufacturing industries have moved to China to develop, the formation of China's southeast coastal areas of enterprise development growth, since 1978 China's reform of China's economic development has a great contribution.Taiwan and China each proposed ”early harvest list”, the two sides based on early harvest list, for export and import products to zero tariffs. Taiwan and China SME co-complementary advantages and enhance its competitiveness, is signed ECFA, to become a community of life in the economic cooperation and industrial cooperation. This study investigated the theory of this issue, must first highlight the trend of economic globalization, the Taiwanese and Chinese SMEs theoretical core, core values and spirit of the legislation are to Grant Thornton, social harmony and people's livelihood and development of SMEs. ECFA framework agreement based on Article 6-1 (seven) ”to promote bilateral cooperation in small and medium enterprises, to enhance the competitiveness of SMEs” basis, the two sides complement each SME cooperation and development strategies.