This document tries to expose the performance factors of the Senegalese Micro,small and medium sized enterprises(MSMEs)involved in the internationalization of their business in China.Indeed it is based on a case study of ten of these micro-enterprises that trade and ship in Guangzhou.This empirical research is interested in their organization and management,their internal resources,as well as the business environment in which they operate.　　Conducted under the qualitative approach,this exploratory research enabled to highlight two categories of forces that affect to some extent the performance of the Senegalese MSMEs operating in Guangzhou.They are called"encouraging factors"and"discouraging factors".　　The main findings on the factors that are favorable to the performance of those Senegalese small businesses in this Chinese metropolis are the accessibility of suppliers in Guangzhou,the importance of stockholders equity of the operators,and their experience and business network built both in Senegal and China.However,at the same time some limiting forces are revealed to be restrictive for those micro enterprises to achieve better performances in China.They include the high cost of living in Guangzhou,the constraints related to the visa in China,and the constraints related to the shipping towards Senegal.　　Essentially the recommendations made with respect to the managers suggest that they improve the management level,invest in business diversification,expand their business network in Senegal,ensure the rent by group(in Guangzhou),and finally to consolidate their customer relationships.For future researches on the performance factors of overseas businesses in China,it is suggested to develop better strategies to collect quantitative data from the operators,to conduct focus-groups with different actors,interview some failed operators to get the reasons of their bankruptcy,and interest in small businesses in other Chinese commercial cities.