废旧塑料的回收利用是近年来治理环境污染的一个重要课题。废聚乙烯（PE）在塑料垃圾中占有很大的比例，如何对其进行合理的回收、利用已成为人们十分关心的问题。从理论和经济两方面分析了废聚乙烯裂解制取聚乙烯蜡技术的可行性，介绍了聚乙烯蜡的性能及市场情况，分析比较了几种有代表性的制蜡工艺，综合评价了这些工艺技术的应用范围和优缺点。还简要介绍了红外脱油技术，并对该技术的研究和应用方向提出了一些建议。

How to reuse plastics wastes is one of the most important studies concerning bringing environment pollution under control. For polyethylene (PE) wastes making up a great part of the whole plastics wastes, people show an increasingly interest in how to reclaim and reuse PE wastes. In this article, the theoretical and economical feasibility is firstly discussed, then the property and market situation of polyethylene wax,several waxmaking technologies and deoiling from waxes using infrared ray are introduced and analyzed. Finally, some sug-gestions on developing directions are made for further investigations.