本文讨论了计算近场综合地震图时使用的广义反射、透射系数矩阵和离散波数方法,并对不同深度点源的情况给出了新的算法及相应的计算实例。用本文提供的新算法,与原算法相比,可以减少60％的计算时间。在需要计算大量点源格林函数时,该方法是很有实用价值的。 This paper discusses the generalized reflection, transmission coefficient matrix and discrete wave number method used in the calculation of near-field synthetic seismograms, and gives a new algorithm and corresponding calculation examples for point sources with different depths. Compared with the original algorithm, the new algorithm provided in this paper can reduce the computation time by 60%. This method is very useful when you need to calculate a large number of point source Green’s function.