In order to improve the indoor positioning precision of moving targets in wireless sensor networks,the method of calculating the actual position of moving targets by using interpolation algorithm to match the signal propagation channel model,combining with X-Bee wireless sensor network technology,is put forward.With this method,the ideal distance is calculated,and then corrected with reference to the actual distance,to establish a set of wireless receiving signal strength localization algorithm.The result shows that when the power level is Lowest,the error value of dynamic weighing method and fixed weighing method of this algorithm is smaller than those in other power levels,and the system positioning accuracy is better.Bsides,when the power level is Lowest,the error value of dynamic weighing method is smaller than that of fixed weighing method.%为了提高无线传感器网络中移动目标的室内定位精度，采用插值算法与信号传播通道模型相配合，结合X-Bee无线传感器网络技术，提出了移动目标实际位置的计算方法。通过该方法计算出理想距离，参照实际距离进行修正，建立了一套无线接收信号强度定位算法。结果表明：该算法的动态权重法误差值和固定权重法误差值在功率级别为 Lowest 时较其他功率级别小，系统定位精度较高；且功率级别为Lowest时，动态权重法误差值小于固定权重法。
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