This paper deals with the large time behavior of the positive solutions for a reaction-diffusion model with two-prey and one-predator.The locally asymptotical stability and the globally asymptotical stability of the nonnegative equilibrium points are given by linearization and Lyapunov functions，respectively.%考察一个含两类食饵和一类捕食者种群的反应扩散模型解的长时间性态.首先应用线性化方法得到非负平衡点的局部稳定性,然后通过构造Lyapunov函数得到全局稳定性.
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