Abstract: The Kunming Arboretum was selected for the field experiment of the seedlings of Taxus wallichiana,which were cultured in the open.With the continual observation and data collection,changes of morphological indexes of the seedlings were compared and analyzed. The results are as follows:1)the optimum period of the seedlings' height growth was August to September; 2)The lateral expansion of the seedlings was prosperous;3)There was the most significant positive correlation between height and diameter of the seedlings and there was a significant positive correlation between the branch length and the diameter;4)The excentric crown phenomenon of the seedlings was slight.

Key words: Taxus wallichiana, seedling, morphological character, Kunming arboretum