Abstract: We use morphological analysis, first-order difference, vector synthesis and average rate of synthesis method to analyze the Yunlong station deformation data before and after the Yunlong M_S5.0 earthquake on May 18th 2016, the results show that the annual variation curve, daily mean values and the ratio appear extremely anomalies before the M_S5.0 earthquake. The anomalies are mainly of annual variation range distortion, daily mean value turning even annual variation breaking, vector swerve, and velocity changes exceed 2 times the mean variance et al.