The purpose of this research was to examine what kind of adaptive significance dependence has on the psychological stability of university students. Dependency has a positive and a negative position, and in this research, we considered dependency from a positive standpoint. Based on previous research, this study defined dependence as "a requirement to stabilize the mind by relying on others mentally in a situation where adults are in a difficult situation." In this study, we created a dependency desire scale and a dependent response scale and conducted a questionnaire survey on328 university students. We examined the influence of dependence on intimate others when depressed and also examined the influence of agreement /disagreement of dependence and response on psychological stability. As a result, from each of the dependent aspiration measures and response measures, four factors were extracted. It became clear that dependency was determined in dependence relation and response to the need to influence psychological stability. From the results, it is important for dependency to play an adaptive function in dependency; it is possible to obtain an appropriate response from a partner and an emotional stability function to calm and organize feelings. The degree of agreement between the responses of the dependent persons is important.