本文采用国际通用的维涅第可夫调和分析法,给出了永胜台水管倾斜仪自85年以来观测资料的逐月调和分析结果,并对在1986年3月13日发生在△=83.7公里处的鹤庆地震前本台资料的变化特征作了简要分析。提出在震前,固体潮振幅因子γ值存在百分之五的变化;相位差△(?)值存在-6.3°的变化;并在震前五天,用乔衣尼基法求出的拟合差出现间歇性的、连续数小时的突变;86年3月,趋势项的 NS 分量出现一个月的反向变化。 In this paper, we adopt the international Vynegakov harmonic analysis method, and give the month-by-month reconciliation analysis results of the data of Yongshengtai water pipe tiltmeter since 85 years. And on March 13, 1986, the result is △ = 83.7 Kilometers before the Heqing earthquake changes in the characteristics of this station made a brief analysis. It is suggested that there is a 5% variation of the γ value of the amplitude of the solid tide before the earthquake; the △ (-6.3 °) difference of the phase difference exists; and the quintuplicate method The coherency appeared intermittent and continuous for several hours. In March of 1986, the NS component of the trend item showed a one-month reverse change.