This research aims to analyze the correlation between family support, love attitude, and well-being of junior high school students. After analyzing related literature, it is found that demographic variables like gender, grade, family structure, socioeconomic position have difference in perception of well-being. In addition, family support and love attitude has correlation with well-being as well. In order to accomplish the research purpose, this study extracted 686 junior high school students as the research subjects to conduct the home-edited youngster's family support scale, love attitude scale, and well-being scale. The three scales have all been pretested, and have good reliability and validity. We analyzed the then current condition of the collected effective questionnaire data with hierarchical regression to understand the explanatory power of the four demographic variables--gender, family support, love attitude--for well-being. The results show: 1. Junior high school students' family support, love attitude, and well-being reaches middle to high level. 2. The explanatory power of the four demographic variables-- gender, grade, family structure, and socio-economic status--is 2.40% in respect with well-being. 3. The explanatory power of love attitude for well-being is 4.00%, and the total explanatory is 34.70%. According to the research findings, this research suggests that 1. Parents should provide more affection support. 2. Grade-12 students should deal with pressures from the heavy schoolwork. 3. The studies in the future cam further explore and analyze the factors that influence well-being.