Based on the Stochastic Frontier Production Model,this paper carries out the econometric analysis on the input-output of the three industries of China's State Farms through the data collected from 2001 to 2006.According to the regressive result,the Total Factor Productivity Growth was divided into technological progress,technical efficiency,allocative efficiency and scale economy.Through further analysis,it is found that the growth of input is the prime motive for the output increase of State Farms.Besides,...