Abstract: Allocating emergency rescue resources reasonably is the premises of improving efficiency. Aiming at the stochastic characteristic of traffic accident and required resources, a stochastic model for resource allocation is created. According to specific road condition and transportation mechanism, some parameters such as rescue service level, weight of accident probability, weight of rescue resource spot to accident spot and stochastic resources are discussed. The parameters and model are applied to rescue resources allocation of Henan freeway. The results show that the new allocation scheme preferably meets rescue demand of high-probability-accident area and reasonably reduces resources allocation numbers of low-probability-accident area. All of those offer important reference value for scientific allocation of emergency rescue traffic resources on freeway.