随机前沿生产函数DEA方法的特点是将有效的生产单位连接起来，用分段超平面的组合也就是生产前沿面来紧紧包络全部观测点，是一种确定性前沿方法，没有考虑随机因素对生产率和效率的影响。随机前沿生产函数则解决了这个问题。-Stochastic frontier DEA method is characterized by effective production units, with a sub-hyperplane combination of production frontier that is tightly envelope all observation points, is a deterministic frontier approach, did not consider the random factors impact on productivity and efficiency. Stochastic frontier production function to solve this problem.