Abstract: In order to improve the performance of existing multicast congestion control algorithm applied to wireless networks，an intelligent-controlled multicast congestion control mechanism is proposed based on expert control for wireless networks，termed ECMCC.ECMCC detects the network congestion state according to network relative queue delay and packet loss，feedbacks information to multicast source based on representatives set mechanism，distinguishes between wireless link errors and network congestion，and judges the current state of the network，then takes different multicast source control strategies to adjust the sending rate.The simulation results show that，ECMCC mechanism has good convergence and sensitivity，smooth sending rate，and good TCP-friendliness in wire network.And ECMCC mechanism enhances the capability to distinguish between network congestion and random errors，and improves the network throughput.ECMCC can adapt itself to a wireless network environment well，achieving some extent on TCP-friendliness over low bit error ratio wireless channel and keeping stable receiving rate over high bit error wireless channel.