Abstract: Weighted clustering algorithm and its improvement has been unable to solve the problem of nodes mobility perfectly.A New Clustered Dynamic Source Routing（NCDSR） based on a New Enhanced Weighted Clustering Algorithm（NEWCA） is proposed.The new algorithm limits the absolute speed of nodes when calculating the weight of nodes and build cluster header.This protocol is simulated by using GloMoSim simulator and defines data structure of this protocol.Compared with original dynamic source routing，NCDSR have the advantages of higher delivery and throughput，lower delay，better expansibility.It is better suitable for the large-scale self-organizing Ad Hoc wireless network when the speed of nodes is more than a threshold value.