我国川滇交界区是大地震的多发区,本文利用该区7个基本台多年观测资料,以倾斜固体潮振幅因子γ值采探测地壳内的应变积累。发现该区M_s>5地震事件通常是在γ值出现异常后发生。根据时空立体模型可大致了解应变积累的迁移趋势,从而可对该区未来的大地震地点进行预测。 The boundary between Sichuan and Yunnan Province is a frequent area with large earthquakes. Based on the multi-year observation data of seven basic stations in this area, the strain accumulation in the crust is probed with the amplitude γ factor of inclined solid tide. It is found that the M_s> 5 earthquake event in this area usually occurs after the γ value is abnormal. According to the space-time three-dimensional model, the migration tendency of strain accumulation can be roughly understood, so that the future earthquake location in the area can be predicted.