Abstract: Graphical method is studied for the multi-dimensional data of phenotype test in Cunninghamia Ianceolata Hook.with the PC-1500 pocket computer.Tree graphs of 14 samples are drawn.The graph includes leaf,crown,stem,branch and root composed of 22 variables.The tree graph represents visually the growth characteristic of the phenotype characters of the parents.It is useful in studying the resemblance and classify among the characters and the parents.