介绍用线性边界元法计算矿用屏蔽通信电缆电容的基本原理和求解过程。两个工程实例的计算结果表明:用线性边界元法(弧形法)计算屏蔽通信电缆,不仅具有较高的精度,而且可很方便应用于各类矿用特种内芯屏蔽通信电缆的工程计算,给出了MHYV-P(3)型矿用屏蔽通信电缆不同位置放置时各芯线间的耦合电容随变形程度变化的关系曲线,获得其合适敷设位置。 This paper introduces the basic principle and solving process of calculating the capacitance of mine shield communication cable by linear boundary element method. The calculation results of two engineering examples show that the calculation of shielded communication cables by the linear boundary element method (arc method) not only has higher accuracy but also can be easily applied to the engineering calculation of various types of mine special core-shielded communication cables The relation curve of the coupling capacitance of each MHYV-P (3) type shielded communication cable with different deformations is given, and the suitable laying position is obtained.