Abstract: Accordiug to genetic divergence and systematic cluster analysis of quantitative characters in 32 slender high grain quality varieties of rice ( Oryza sativa L. subsp. hsien.Ting ) in South China region.the varieties were classified into 5 types. The genetic divergence of different types was greater then the similar tyte. It is showed that selection parents for hybridization in rice breeding for slender high grain quality may be conducted between different types, but one of parents has fit the object of breedieg, when it will be only impoved 1 to 2characters, other pareut may be also not selected the variety of greater genetic divergence.