收集整理2007年以来延边地震台记录的113个远震数字波形资料，采用远震接收函数反演延边地震台下方地壳结构，运用H—Kappa叠加方法，计算得到台站下方地壳厚度和泊松比。采用全球平均地壳模型作为初始模型，反演台站下方0—100km的S波速结构。反演结果表明，延边地震台下方地壳厚度为30.8km，波速比为1.84，泊松比较高,为0.29。在台站下方15—20km及25—30km处存在低速层。

 We calculate the receiver functions by using the teleseismic wave form data of Yanbian Seismic Station and obtain the crustal thickness and Poisson ratio beneath the station by H-Kappa stacking method. According to the global average model as the initial model, we obtain the S wave velocity structure 0—100 km below the station by inversion. The inversion results show that the crustal thickness beneath the station is30.8 kmand the wave velocity ratio is 1.84 and Poisson ratio is 0.29 which is relatively high. The low velocity layers are 15—20 km below the station and 25—30 km below the station.