Abstract. This article mainly describes the method to apply the people’s psychological demand in the private courtyard within the scope of environmental psychology. Private courtyard is a place where the activities for house owners are carried out most frequently. The spatial design of private courtyard is in close relation with people’s psychological feeling. In the process of design, the environmental psychology will be incorporated into the consideration of people’s demand on their physiology, safety, communication, recreation and self-realization, in order to create a humanized, functional and beautiful private courtyard space.