Abstract: In order to realize the technical efficiency of potato producing in China, three-stage DEA Model is applied in 14 potato producing areas of China to calculate the real efficiency with economics effects, social effects and ecological effects. The results indicates that the level of economic development, the commodity rate, the disaster rate and other environmental variables, as well as random variables, are related to the efficiency of potato producing. Under the same environment and luck conditions, differences of pure technical efficiency of each potato producing provinces are relatively small, maintaining at a high level; scale efficiency have a significant differences but the overall level is not high, the scale efficiency has become a bottleneck restricting the potato technical efficiency. This paper argues that, in order to improve the technical efficiency of potato production in China, there are two directions: production scale and the macroscopic environment.