本文从理论上计算了四种非电导爆管孔外延期网路的可靠性，并比较和分析了计算结果，同时做了地表对比试验。从而得出“单线补偿串联网路”为最可靠网路。 In this paper, the reliability of four types of non-conductive burst hole extension networks is calculated theoretically, and the results are compared and analyzed. At the same time, the surface contrast test is done. Thus come to “single-line compensation series network” as the most reliable network.