Abstract: The 20 Eucalyptus clones test analyzed results involving 5 species showed that there were highly significant differences in growth and other characteristics among clones. Repeatability of clones and individual retained the stable level at different ages with 61.46%～93.84% and 28.51%～79. 19% for different characteristics studied, respectively. There were closely phenotypic,genetic and environmental correlation among H,DBH and SV each other. Branch size (BR) had significant negative correlation with growth characteristics. At an age of 5. 5 year old, the mean value of individual volume (SV) of the fastest clone (TH9113) (0. 092 08 m3) was 4. 078 0 and 1. 962 9 times of the worst clone (CP01) and the whole population (all clones), respectively. All clones were categorized into 4 classes by u sing principal component analysis,and the fastest class was 264. 99% higher than the lowest class with a obvious level of productivity increasing.