The main purpose of this research is to examine the impact of parenting styles, and self-concepts on life adjustment among high (vocational) school students in single-parent families. The results indicated that high (vocational) school students' life adjustment was predicted by their genders, years of study, school attributions, social-economic status, parents' gender, parenting styles, and students' self-concept. In addition, the respondents also presented relatively a high level of self-concept and good overall life adjustment. In terms of parenting styles, the students perceived positive and encouraging parenting styles from their parents, but there were significant differences due to the social-economic status and causes of single parent. Different genders, years of studying, and social-economic status have significant differences in overall level of student’s life adjustment. The implications and the applications of results and there are discussed. The conclusion of this study is based on the results of the study mentioned above, and can be used as a reference for people who would like to study further in this field.