Environmental issues and mental health both are the emerging topic in global level. Maximum studies recognize that mental health is directly and indirectly affected by environment. Residential crowding, loud noise, air pollution and climate change are the causes of behavioural disturbances such as stress, depression, aggression and anxiety. Where environmental education deals with various rules and has significant impact on human health. It helps to know about the interdependency of living things and to promote sustainability by developing a sense of responsibility of human being toward environment. Environmental education is highly relevant for individuals to decrease the mental illness. Today’s young generation is suffering from various mental health issues. So, it is very necessary to introduce environmental education as a compulsory subject at each level of education, including university level to resolve environmental issues and improve mental health.