Through the way of collecting data by questionnaire,?we start the empirical?analysis of the relationship between the?Xinjiang small and medium-sized enterprise based?on the theory of?sustainable marketing?capability in this paper, draw the following conclusions: the sustainable marketing?competence of ?Xinjiang’s small and medium-sized?enterprise is relatively low, and its contribution on firm performance?is also relatively low;?Its reason mainly?has three aspects: the?contribution of the Xinjiang?small and medium-sized enterprise?culture on performance?is not enough, which is?its?biggest weakness; the marketing?learning ability of the small and medium sized enterprises in Xinjiang is poor, which has not played the bridge?role well between a corporate culture?and?the capacity of marketing operation; the marketing operation?capacity of Xinjiang?small and medium-sized enterprises?should be improved, and the pace?of marketing?lag, lacking of features.