Abstract: In order to improve the degree of precision, we chose 16 factors of hip bone and make a table on ` Sexual discriminant analysis of hip bone by different levels'. By help of this table 82 sets of hip bones ( M 42, F 40) were sexes. The results display that the precision of the sexing is the highest one ( 97. 0% ) by this method than that by the ordinary methods with one factor ( 85. 4% ) and /or some factors ( 92. 1% ) . It is a more effectual way for forensic medicine, anthropology and archaeology.

Key words: Discrimination by different levels, Osteometry , Hip bone, Sexual discriminant analysis, Modern Chinese