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利用小波分析方法对云南西部地区的多期重力观测资料进行了计算，并将 计算前后的重力结果进行了对比分析，同时讨论了不同阶的小波分解结果的物理意 义及其与地震之间的对应关系．由对应于地壳浅层物质状态变化的一阶小波分解所 得结果显示，在地震前的１９９２～１９９３、１９９３～１９９４、１９９４～１９９５年等多期重力变化中 震源附近都有一定的异常，特别是１９９５～１９９６年的同震变化更加明显。而反映地球 深层物质状态变化的重力二、三阶小波的分解结果虽然对地震过程有一定的响应，但 不是特别明显，这与丽江７．０级地震发生在浅层（深约１０ ｋｍ）是一致的。
The multi-period gravimetry observations in western Yunnan were calculated by wavelet analysis, and the gravimetric results before and after the calculation were compared. The physical meanings of wavelet decomposition results of different orders and their correspondences with the earthquakes relationship. The results obtained from the first-order wavelet decomposition corresponding to the state changes of the shallow crustal material show that there are some anomalies near the sources in the multi-period gravity changes from 1992 to 1993, 1993 to 1994, and from 1994 to 1995 before the earthquake. In particular, The coseismic changes from 1995 to 1996 are more obvious. The second and third order wavelet decomposition results, which reflect the changes of the Earth’s deep matter state, are not particularly obvious although they respond to the earthquake process. This is consistent with the fact that the MS 7.0 Lijiang earthquake occurred in the shallow depth of about 10 km Consistent.