(title) analyzing the internal structure of the tertiary industry in Ningxia(Abstract) according to Ningxia's economic development in recent years the internal structure of the tertiary industry of Ningxia, using empirical analysis method, through the calculation of the tertiary industry in Ningxia the scale advantage index, employment index, the index of sustainable development, through the comparison of the national average data, reveals the Ningxia service industry with industry structure is not balanced, the tertiary industry employment concentration in traditional service industry, modern service industry development is slow, industry characteristics, and in view of the above problems, we adopt to accelerate industrial upgrading, efforts to the development of modern service industry, the implementation of the talent strategy plan, promote the adjustment of Ningxia industrial structure of the tertiary industry, to achieve industrial upgrading, promote the economic development of N[keyword]: Ningxia, the tertiary industry, industrial structure, industrial upgrading, the empirical analysis, the modern service industry