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为了刻画潜在的空间效应，本文提出了一类空间滞后随机前沿模型．在单边误差项分别服从半正态分布、指数分布及截尾正态分布的情况下，我们给出了模型的对数似然函数及迭代步骤．此外，应用JMLS方法给出了单边误差项的条件均值与条件众数，因而得到了相应的技术效率估计．“,”This paper proposes a stochastic frontier model with spatial lag variable to account for potential spatial effects. We proposed the log-likelihood functions and the iterative steps with three different distributions for the one-sided disturbance term, the half-normal, the exponential and the truncated normal. Besides, using JMLS, we educes the conditional expectation and conditional mode of the one-side error term to estimate technical inefficiency.