Web service is the major application of distributed computing at present. Dynamic composition and reconstruction of services are main value-added models of service application; however, there is still no useable data of service behavior, which makes it difficult to analysis behavioral characteristic and pattern of service. This paper proposes a simulation framework of service behavior oriented the behavior of service interaction, then research and test the related construction method. It firstly gives the definition of service behavior log and discusses the characteristic and evolution of execution behavior of service composition. And this paper gives the design of the simulation system of service execution behavior. The simulated experiment shows that the platform can provide the basis of data for related research with its effective simulation of large-scale log for dynamic web service interaction.