Abstract: In order to select excellent families of Toona sinensis suitable for Qinba mountain areas and provide good varieties for afforestation of fast-growing precious timber species in this area. The random block design was used to compare the afforestation of Toona sinensis families from 4 provinces and 10 regions in Wangcang county of Qinba mountain areas. Through the analysis and comparison of 3-year-old DBH, tree height and individual volume from different families, the early selection of excellent families was carried out. The results of afforestation for 3 years showed that the average DBH, tree height and individual timber score of 34 half-sib families were 4.81 cm, 4.30 m and 0.005 m3 respectively, and the coefficient of variation was 22.43%, 21.36% and 55.78% respectively, with significant differences among different families. Three early excellent families, Pengxi 22, Pengxi 25 and Hongya 9, were preliminarily selected, and the selection rate was 8.82%. The mean values of DBH, tree height and individual volume were 6.10 cm, 5.23 m and 0.0087 m³, respectively. The selection differences were 1.29 cm, 0.93 m and 0.0037 m³, respectively. The genetic gains were 22.19%, 18.30% and 58.28%, respectively. The average annual growth of DBH and height of the three excellent families were 2.03 cm and 1.74 m respectively. They had low selection rate, great selection differences, obvious growth advantage and great genetic gain. Through further observation, they are very likely to become good varieties in Qinba mountain areas.