静态重力场变化可为地壳深部结构研究提供重要基础数据。本文利用小波多尺度分解方法，对河北及邻近区域（110°～120°E，36°～42°N）的布格重力异常、Airy均衡重力异常数据资料进行了处理分析，得到了不同尺度下的分解结果。结果表明：张渤带、山西带在中上、中下地壳存在一定程度的异常，破坏性地震主要发生在重力异常正负差异高值转换区及地震带的交汇部位；布格重力异常在4阶小波细节分解结果（近莫霍面处）中显示张渤带中段存在正负差异高值异常，在一定程度上佐证了该区在一定范围内存在地幔物质上涌的通道，通过此次实验对研究区内地质情况及孕震环境有了更为清晰的认识。

The change of static gravity field can provide important basic data for understanding deep crustal structure. In this paper,wavelet multi-scale decomposition method is used to process and analyze the data of Bouguer gravity anomaly and equilibrium gravity anomaly in Hebei and adjacent areas(110°～120°E,36°～42°N),and the decomposition results at different scales are obtained. The results show that the crust of Zhangbo belt and Shanxi belt is abnormal to a certain extent,and the destructive earthquakes mainly occur in the interception area of positive and negative gravity anomalies and the intersection of seismic zones. Bouguer gravity anomaly in the fourth order wavelet details(near Moho) decomposition results shows that there exists high value anomaly of the positive and negative differences at middle Zhangbo segment,to a certain extent in a certain range,supporting the existence of mantle material upwelling channels. The results from the experiments in this work will help to understand the geological background of earthquake generation.

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中国地震局震情跟踪定向工作任务青年课题（2021010214）、中国地震局地震科技星火计划攻关项目（XH19008）共同资助