Abstract: It discusses the relation-element and matter-elelment’ s storage in computer by orthogonal list storage based on graphs.Relation-element’ s extension was transformed into research on graphs.According to the graphs’ characteristics the intricate contradiction problems were found out and solved.By combining AOE net operations,it figures out the key path to sovle contradiction problems.

Key words: Extenics； Relation-element； Matter-element； orthogonal list storage； Graph；