Abstract: F₁ segregating populations were obtained from two accessions of centipedegrass with different morphological characters. The heredity of five morphological characters, i.e. leaf length and width, internode length and diameter, and height of turf in F₁ populations, were analyzed by the major gene and polygene mixed genetic model, to reveal the genetic mechanism of these morphological characters in centipedegrass. The greatest variation was found in the leaf length and the coefficient of variance (CV) was 23.39%, followed by the variations in internode length, height of turf and internode diameter with the CVs of 21.89%, 15.32% and 7.41% respectively. The variation in leaf width was the least, CV 6.77%. One major gene model with additive, partial dominance or over dominance (A-1) was the most suitable model for the leaf length and the heritability of the major gene was 68.98%. One major gene model with negative entire dominance (A-4) was the most suitable model for internode length and the heritability of the major gene was 47.37%. A two major genes model with co-dominance (B-6) was the most suitable model for the height of turf and the heritability was 47.20%. The most suitable model for leaf width and internode diameter was for no major genes (A-0).