People¡¦s individual personality and aesthetics tastes regarding living milieu can be examined and understood through their preferences on designs of living-room furnishing. The current research investigated college students¡¦ needs and cognition about living-room furnishing, sifted out various factors for living-room functionality demands, and understood cluster analysis among the groups derived from the factors. Additionally, the current study analyzed the relationships between functionality demands and furnishings of living-room, as well as the cognition situation of the students in the different groups regarding designs of living room. Forty-five (45) students of the National Sun Yat-San University were recruited as participants in the quasi-experiment for similarity of living room designs. In addition, one hundred and fifty (150) were collected for the questionnaire of living room needs and preferences. The methods for the data analysis in the current research included factor analysis, cluster analysis, MDS, and association and preference analysis. The major findings are listed as the followings. 1. The people¡¦s needs of living room functionality have three factors: family gathering, aesthetic taste, and sociableness. 2. The higher education level, the more demanding on the functions of ¡§family gathering and aesthetic taste¡¨. The higher monthly living budget, the more inclining for the function of ¡§sociableness¡¨. 3. Each group has different cognition dimensions and preference patterns about living designs.