Abstract:New cross combinations were subjected to regional test during 2000-2002 in Guangdong Province by using fuzzy comprehensive evaluation method. The evaluation factors included fresh spike yield, plant type traits, growth duration, resistance and quality. The results showed that the fuzzy comprehensive indexes for the combinations could well reflect the practical quality levels of the corn varieties. This method is more accurate in quantifying the factors evaluated in comparison with the weighted aggregative index method． The evaluation values finally obtained could reflect both the relative grades between evaluation factors and the absolute grades directly.