Abstract: To solve the load equilibrium in multi-channel random multi-access system,we propsed a control approach based on load equilibrium.In our approach,the average cycle partition method is applied to analyze the new system from theoretical aspects.Thus,the mathematical formulas can be obtained for each channel,each priority and the system thoroughput.As well,the result was verified by the experiments that are simulated by computers.Comparing with the previous control methods,our method has better performance on load equilibrium and throughput.It can show that our method is useful for both light load and heavy load systems.