Abstract: Based on many years of practical experience in composting engineering exploration, working principle, structural characteristics, technical parameters and application scope of chain-plate turning machine, wheel and disk turning machine and closed vertical composting reactor were introduced in detail．Taking treatment of chicken manure raw materials as an example, these three composting schemes were compared and analyzed in detail from aspects of floor space, work efficiency and unit energy consumption, in order to provide a reliable technical way and method for realizing rapid treatment of chicken manure in factory and optimizing production process of organic fertilizer．Comparison results indicated that, wheel and disk turning machine had high efficiency and low maintenance cost; chain-plate turning machine had a good effect, and main and auxiliary materials were kept in a mixed and uniform state, making it difficult for materials to layer; closed vertical composting reactor had high degree of automation and low pressure for odor treatment．