In this study, we developed a causal relationship model of member satisfaction of the Visualization Society of Japan using structural equation modeling from results of member questionnaire. Acceptable causal relationship is developed by using the evaluation grid method and the graphical chain modeling. From the model, it is revealed that English research journal, reputation of the society, and grasping advanced research trend are important factors of member satisfaction. Moreover, from the difference between the evaluation structure of the ideal society and the model of the Visualization Society of Japan, structural defect that closeness of a research ﬁeld is not affected to beneﬁcial discussion is revealed. From the analysis, we conclude that activating beneﬁcial discussion and increasing paper submission of English journal are key factors to improve member satisfaction.