Abstract: Modeling the stochastic multiaddress system control of such 2 priorities as multichannel and multi-service is taken as the basis of our work.The performance of these 2 models by 1-CSMA access control protocol is analyzed and compared.Thus,the formal expressions of the average successful queue length,the respective and the total throughput can be obtained for these 2 kinds of systems.Further,the simulation and experiments are carried out,and the correctness has been proved by theoretical analysis.