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The mobility has been shown to be beneficial to improve the performance of wireless sensor networks. In this paper, a new routing scheme based on subarea mobile service is proposed. According to the number of mobile nodes in the network, the area of network is divided into multiple subareas equally. In each subarea, there is one mobile node to relay the data of static nodes. Based on Nearest Neighbor Algorithm, each mobile node plans the moving path in its own subarea. The simulation result shows that under the proposed routing scheme, the throughput of network could be increased, the average delay and delay jitter could be reduced.