As a university-affiliated unit, the dormitory has large total construction area characteristics, a high utilization rate, and a larger overall architectural shape. To promote the construction of a green campus and improve energy efficiency, it is necessary to master student dormitories" basic information and electricity usage. Existing research has conducted a comprehensive analysis of the electricity consumption of dormitory buildings, but lacks detailed analysis and research on the electricity consumption of each room in the student dormitory. In this study, 533 female dormitories at a university in Shanghai were divided into four clusters, and the air-conditioning habits of students in the dormitories were investigated. The survey revealed that the use of electricity and air-conditioning in student dormitories lasted a long time, and the average outdoor temperature was the main factor affecting students" electricity use. The regression analysis model shows that the electricity consumption of the same type of student dormitory has a linear relationship with the outdoor temperature. In general, this study is built on the actual electricity consumption data of dormitories, provides the basic characteristics of the ample electricity consumption of the student dormitories, and establishes a calculation model of electricity consumption in students’ dormitories.