Abstract: The development of stockbreeding results to serious pollution to the circumiacent environment. Aerobic composting technology is an effective solution to treat solid organic rejectamenta. In this paper, the experiment was conducted to study the effect of difeerent bulking agents on cattle manure composting. The results indicated that when the initial ratio of C to N in the underset of compost was 27:1, and initial wates content was 65%, all the corn core, corn straw and rice straw can be used as opsonin which enhance the aerobic composting of cow feces, and it can reached the level of innocuity. While the porous and loose corn core was beneficial to the ventilation and oxygen supply of composting bin, the temperature of the compoting bin which the bulking agent is corn core rised and dropped quickly and the high temperature lasted much longer, and the corn core is beneficial to the process of composting.