The invention discloses a
polyvinyl chloride composition and a transparent
pipe thereof. The
polyvinyl chloride composition consists of the following components in part by weight: 100 parts of PVC resin, 1.0 to 5.0 parts of heat stabilizer, 0.2 to 2 parts of lubricating additive, 1 to 3 parts of
processing modification aid, 2 to 5 parts of
impact modifier, 0.01 to 0.08 part of decolorizing agent, 0.2 to 0.6 part of age resister and 0 to 10 parts of
plasticizer. The
polyvinyl chloride composition is subjected to high-speed hot mixing and low-speed cold mixing, and then is extruded to prepare the polyvinyl
chloride transparent
pipe; and the
pipe is homogenous and transparent, has smooth inner wall, is not easy to scale, can be sleeved outside a pipeline for delivering important or dangerous chemicals, has monitoring and protecting functions, has good
ageing resistance, and can be used for outdoor occasions. The preparation method for the polyvinyl
chloride transparent pipe is simple, convenient and quick, does not require special tools and
professional staff, and is favorable for large-scale industrial production.