Abstract: In this experiment， 10 fresh\|eating waxy maize inbred lines were used as parents materials to study genetic analysis of corn bract and combining ability of F1 bract by complete diallel cross design. The results showed that variance analysis of general combining ability of bract thickness， the outermost bract length （width）， the longest bract length （width）， the innermost bract length （width）， bract number， bract fresh weight and bract dry weight reached an extremely significant level. Moreover， special combing ability of the above， except the longest bract length （width）， achieved an extremely significant level. There was no difference between GCA and SCA of parents. The longest bract length， bract number， bract fresh weight and bract dry weight were controlled by additive gene effects; Bract thickness， the outermost bract length （width）， the longest bract width and the innermost bract length （width） were controlled by dominant and epistatic effects， including additive gene effects.

Key words: corn\, husk, waxy\, corn, heritability, complete diallel cross