本文用预估方法对河北省易县台1985年地倾斜资料进行了预估计算,发现1985年10月5日发生在唐山老震区沙河驿M_L=5.3级地震震前异常确实存在。从而,证实了运用预估方法监测地震前兆异常的可能性,但应在今后实践中进一步完善该方法。 In this paper, the prediction method was used to estimate the slope data of Yixian station in 1985 in Hebei province. It was found that the anomaly existed before the M 5.3 earthquake of Shaheyi station in Shaheyi, Tangshan, October 5, 1985. Thus, the possibility of using the predictive method to monitor seismic precursory anomalies is confirmed, but the method should be further refined in future practice.