The filter materials, parameter designs, and structures of cigarette filter were reviewed. 1) The features and harmful component reducing effects of modification technology of cellulose acetate fiber and polypropylene fiber, paper filter material technology, and new type filter material technology were described. 2) The influences of filter parameters (length, draw resistance, plasticizer addition rate and ventilation rate of filter) on the deliveries of tar and harmful components in cigarette smoke were introduced. 3) The technological characteristics and harm reduction effects of filters with special-shaped or composite structure, which were increasingly attractive to consumers, were explained. The optimized design of cigarette filter parameters has become a common technology adopted to reduce tar and harmful components in cigarette smoke; efficient, environmentally friendly filters and filters with special-shaped structure will be used in more and more low tar and less harmful cigarettes in the future.%对滤嘴材料、滤嘴参数设计、滤嘴的结构进行了综述。①阐述了醋酸纤维和聚丙烯纤维改性技术，纸质滤材技术，新型滤材技术的特点和降焦、减害效果。②介绍了滤嘴长度、吸阻以及增塑剂添加量、滤嘴通风率等滤嘴参数对烟气焦油、有害成分释放的影响情况。③对引起越来越多消费者青睐的异型结构滤嘴、复合结构滤嘴，阐明了其技术特点和降焦、减害效果。卷烟滤嘴参数优化设计成为降焦减害普遍采用的技术；高效、环保滤材和特殊结构滤嘴未来将在越来越多的低焦油低有害成分释放卷烟产品上应用。
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