Abstract: In this paper, the data of bodyweight,hair length and body size of Qinghai highland simifine wool sheep of 40 sires and 100 ewes were analysed by the computer procedures,using the Excel and SPSS software researched their correlation analysis and regression. The results showed that the bodyweight of adult sires and ewes sheep were respectively 90.2 and 39.2 kg,their hair length were respectively 10.1 and 8.7 cm,and while the regression equations were respectively Y(body weight)=-65.62+5.04X₆(chest depth)(P＜0.01),and Y(body weight)=-11.62+0.41X₄(bust)+0.76X₅(chest width)(P＜0.01) for sires and ewes sheep. By this research,some references were afforded for simplification and improvement of selection technology

Key words: Qinghai highland semifine wool sheep; selection technology; study