Abstract: The influences of different enzyme preparations on the fatting effects of eggtype cockerels were studied with rations, mainly composed of corn and bean meal, added with Huafen Feed Enzymes, Kemzyme and Yiduoli respectively, and no enzyme preparation was used in contrast test(CK). Random designing method was used in the test and raising period covered 70 days. The results show that the daily gain of Huafen Feed Enzymes group is very obviously higher than that of CK group (P<0.01) and Kemzyme group is also significantly higher than that of CK group (P<0.05), while there is no notable difference between Yiduoli group and CK group (P>0.05). The feed conversion ratios for each group are 2.57:1 in Huafen feed Enzymes group, 2.65:1 in Kemzyme group, 2.71:1 in Yiduoli and 2.75:1 in CK group, and the former three groups were 6.55 %, 3.64 % and 1.45 % higher respectively than CK group. The benefit of Huafen Feed Enzymes group, and Kemzyme group is better than that of Yiduoli group. Each group by 11.30 %,7.20 % and 2.26 % respectively over CK group. So, to select enzyme preparations for cornbean meal type ration of fatting eggtype cockerels, Huafen Feed Enzymes should be the first choice and Kemzyme will be the second, while Yiduoli will not be recommended.