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The internet IP multicast technology has been extended to the field of wireless mobile. High performance routing algorithm is important for multimedia multicast in mobile wireless internet environment. This paper proposes a high performance multicast routing algorithm in mobile IP environment based on the super node set, which can reduce the cost of multicast generation tree, and greatly reduce the network bandwidth of the multimedia multicast business. So it can make large-scale multimedia multicast communication in the mobile wireless internet environment with limited bandwidth possible. The simulation test shows that compared with the similar algorithm, our algorithm has better performance index, such as cost performance, join time delay and multicast transmission delay.