Abstract: In order to further drop the lower size limit of separation and make optimum selection of the key screening equipment for use in power coal intensive cleaning process, the paper presents a detailed introduction to three screening equipment, i.e. flip-flop screen, high-amplitude screen and cross screen. Following that, a summary and comparison are made of the working principle, technical features, power consumption, maintenance requirements and prices of the above-cited screens, which may serve as a reference for the optimal selection of screening equipment for use in coal preparation plants.