The purpose of this paper is to clarify the relation between image of dot-patterns and the eranhical properties of them. Firstly, 41 kinds of dot-patterns are made by CG for specimens. Secondly, 6 fundamental factors are chosen for evaluating image of dot-patterns. And the psychological values of the specimens are measured with respect to 6 image factors. By multiple regression analysis method, we found that the psychological values of dot-pattern image are closely related with the graphical properties of them.