The fuzzy comprehensive evaluation method was applied to the quantitative evaluation of the maize new cross combinations from 1999 to 2001 in Guangdong province. The results showed that Yuedan 2, Nanyu 18 and Nanyu 35 ranked the first among the combination evaluations of regional trials in 1999-2000. The comprehensive evaluation values of the combination of Yuedan 2,Nanyu 18 and Denghai 3 were high and stable in the successive two-year experiment. So they were recommended to popularize in Guangdong province.