Man is basically a mind and physical body unit and these two aspects vitally influence each other. For efficient functioning of the individual, he should, not only possess sound bodily health, but also sound mental health. Home environment is the most important institution for the existence and continuance of human life and development of various personality traits. Parental involvement among their adolescents' school life improves their personal, social, physical and mental health as well as their academic success. In the contemporary society, mental health has become a major problem affecting almost every person. High school students are in the adolescence age group. In this adolescence period they tend to have physical, mental and emotional problems. Home environment is the major factor for developing adjustment and positive mental health among adolescents. This book intends to measure the Home Environment, Mental Health and Academic Achievement of High School Students