地质体“基底构造”的计算是区域重力解释中的重要任务之一。本文以深部二维重力异常的正演计算为例,用矩量法(MOMENT METHODS)求解积分方程反演其“基底构造”。计算结果表明,用矩量法中的分段基和点选配法反演深部“基底构造”,特别是提供“基底”的平均深度是一种卓有成效的直接方法。 The calculation of the “basement structure” of the geological body is one of the important tasks in the regional gravity explanation. Taking the forward calculation of deep two-dimensional gravity anomaly as an example, this paper uses MOMENT METHODS to solve the “basement structure” by integrating the integral equation. The calculation results show that it is an effective and direct method to retrieve the deep “basement structure” by using the subsection basis and point matching method in the moment method, especially to provide the average depth of the “basement”.