Small and medium-sized foreign trade enterprises to explore the core competitiveness of the summary, China's small and medium-sized foreign trade enterprises by the rapid development of small and medium-sized foreign trade enterprises in national economic development played an increasingly important role in the survival of small and medium-sized foreign trade enterprises and the development of more and more people Concern. The next era is the era of small and medium-sized foreign trade enterprises, a dynamic small and medium-sized foreign trade enterprises will continue to play its operating flexibility comfortable, convenient sales, cash flow flexibility, and other advantages in the competitive market economy in our own place, and China's economy to inject new vitality into the in development have their own advantages, but also faced a series of issues, the SMEs face a prominent issue is the lack of competitiveness, in particular the general lack of core competitiveness. The future market competition will be the core competitiveness of the competition. Since last year based on international and domestic trade the deterioration of the environment, this year's trade situation is very grim. China's SMEs to the plight of growth, expansion, able to compete successfully in the market, it must continue to nurture and build their core competitiveness, to enhance its capacity for sustainable development, enhance its international competitiveness on the market .This paper on small and medium-sized foreign trade enterprises on the importance of the national economy, followed on the current trading environment that foster and enhance core competitiveness of the necessity and secondly through the core competitiveness of the overall outline for the research papers provide the basis for theoretical basis and Guidance; Third, analysis of China's small and medium-sized foreign trade enterprises and the core competitiveness of the current situation and existing problems; fourth, to small and medium-sized foreign trade enterprises and the core competitiveness of nurturing way and the implementation of specific measures. Finally, the article discusses the issue made a concluding. Key words: small and medium-sized foreign trade enterprises; core competitiveness and nurture