Abstract: This paper presented a kind of random persistent and Probability Detection joint control for Multi-channel Random Multi-access (NPDMRM).It divided transmission period of system into two parts in which different control strategies and sleeping mechanism were adopted,so the system could present excellent performance.This paper calculated the expression of important parameters like throughput of system,throughput of different business and the energy efficiency of WSN through analyzing the random multi-access system in the condition of multi-channel and multi-business theoretically.It then proved that the theoretical analysis was true through computer simulation experiment.We can get from the result that NPDMRM has long life cycle.