The purpose of the study was to examine the current status, correlations and demographic differences between parenting style and students' well-being of higher grade students in elementary schools, as well as to explore how parenting styles impact students' well-being. Purposive sampling was conducted and 393 students were selected from one elementary school in Chia-Yi County. The data collected by questionnaires were analyzed through descriptive analysis, principal components analysis (PCA), and regression analysis. The results revealed as below: 1. Parenting styles are significantly different, the styles of "demand" are more than "response". 2. Parenting styles can be ranked in descending order as "authoritative", "neglect", "indulgent", and "authoritarian". 3. All dimensions in the "emotional well-being" scale scored in descending order as: "interpersonal harmony", "life satisfaction", "physical-mental health", and "self-confidence". 4. Demographic variables (gender, number of siblings, family structure, parental education, and parental socioeconomic status) scored significantly differently in both parenting styles and emotional well-being scales. 5. Parents with the parenting style of "Authoritative" have children with the best "emotional well-being". 6. "Parenting styles" can predict "emotional well-being" of children. Several education and cultivation suggestions were made based on the findings. The aim of this research was to help parents understand their children's psychological needs in the development stage as well as give them proper care and discipline. Besides, this research also could be a reference for school counselling and parenting education.