Abstract: ： Based on the data from 2007 to 2017, a model was established by using the DEA method to evaluate and analyze the comprehensive efficiency of agricultural science and technology innovation in Xinjiang, the integrated efficiency was decomposed into pure technical efficiency and scale efficiency, the utilization degree and expenditure scale of agricultural science and technology innovation in Xinjiang in each year were discussed. On this basis,a limited dependent variable random effect tobit model was built, the scale of Xinjiang agricultural science and technology innovation efficiency was as explained variables. The explanatory variable took in the actual observation of agricultural technology market turnover, agricultural R&D funds investment, agricultural technical personnel number, total power of agricultural mechanization, agricultural patent authorized number,fertilizer application, agricultural science and technology papers published and the total value of farm output. Tobit model was used to calculate the influencing factors and to analyze the influence degree.On the basis of the empirical results, according to the actual situation,some suggestions on the efficiency of agricultural science and technology innovation in Xinjiang were put forward.

Key words: agricultural science and technology, innovation efficiency, DEA-Tobit model, the scale efficiency