It shows a method for analyzing the uncertainty of the receiver within the near-field antenna measurement sys-tem. The method which to separate the receiver amplitude nonlinearity and the receiver dynamic range is shows in the theory. The core of processes is changing the receiver's average times and output power whiling change the receiver's IF band. In the article, the results of the uncertainty are shows with the experimentation with real situation.%介绍了一种平面近场接收机相关的非线性与动态范围误差电平的评定方法。通过对接收机误差的理论分析，确定了分离不同误差源的方法，即改变接收机平均次数分离，以及改变发射功率的同时，改变接收机中频带宽。给出了接收机非线性误差与接收机动态范围误差的评定方法。以实际测试结果为例，说明该误差对于不同方向图电平的误差计算方法与计算结果。
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