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渠道防渗是一项先进的节水灌溉技术，是提高渠道水有效利用系数的工程措施，此项技术在晋中地区有了较大的发展。本文系统地总结了全区渠道防渗技术的发展，包括渠道防渗材料，防渗型式，渠道冻胀及防冻胀处理措施、防渗渠道的施工和防渗运用效果。其防渗材料分为：砌石、预制混凝土板、塑料薄膜以及采用Ｕ型渠道断面等。
Anti-seepage channel is an advanced water-saving irrigation technology is to improve the effective utilization of channel water engineering measures, this technology has been a greater development in Jinzhong. This article systematically summarizes the development of anti-seepage technology in the whole area, including the seepage control materials of channels, seepage prevention types, measures of frost heave expansion and frost heave prevention, construction of seepage prevention channels and application of seepage prevention measures. The impermeable material is divided into: masonry, precast concrete panels, plastic film and the use of U-shaped channel section.