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In order to explore the effect of kitchen waste addition ratio on the aerobic co-composting process of chicken manure and wheat straw, different proportions of kitchen waste were added to the mixed system with a dry weight ratio of chicken manure to wheat straw of 1∶ 5, and aerobic co-composting was performed using a forced intermittent ventilation aerobic composting device. The results showed that in the mixed system of chicken manure and wheat straw, when the proportion of kitchen waste was 0. 05 and 1, the com- posting pile entered the high temperature period ( > 50 ℃ ) earlier than other treatments and maintained for 8 days, with higher organic matter removal rate (13. 35% and 18. 20%, respectively) and germination index (116. 3% and 120. 6%, respectively) . When the addition ratio of kitchen waste was higher than 1, the pile achieve the high temperature period was later and the time maintained was shorter. Adding kitchen waste reduced pH and EC value of the pile, and improved the removal rate of organic matter (13. 35% ~ 20. 63% ) . Also, scanning electron microscope showed the straw surface was obviously broken then others. Redundancy analysis ( RDA) showed that pH, zinc, EC were the key environmental factors affecting the changes of GI and VS during composting and showed positive relationship. Therefore, appropriate addition of kitchen waste can promote the composting of chicken manure and wheat straw. [ABSTRACT FROM AUTHOR]