The purpose of this study was to organize and define the concept of psychological independence in university students, and to examine its correlations with several influential factors and psychological adjustment. Psychological independence was defined as "exercising emotional, cognitive, and behavioral control over one's life, and being responsible for one's own behavior". The participants were 329 university students, who filled out a questionnaire. As the result of a factor analysis, psychological independence was distilled into 5 factors, namely "building self, "emotional control", "self-determination and responsibility", "positive attitude to life", and "unattained individuality". The results of a multiple regression analysis suggested: 1) psychological independence was significantly correlated with basic trust in both genders; 2) psychological independence in females was correlated positively with distant associations with friends; 3) emotional support from fathers was correlated negatively with psychological independence in females, whereas emotional support from mothers was positively correlated; and 4) in males there was little correlation between psychological independence and interpersonal factors. Another multiple regression analysis suggested that psychological independence was correlated with maladjustment, besides adjustment. The limitations and implications are discussed.