Abstract: The present study is aimed to find out the correlation between environmental ethics and participation in environmental activities among higher secondary students. Environmental Ethics Scale was constructed and validated by Dr. Haseen Taj(2001). The Participation in Environmental Activities Scale for higher secondary students was constructed and validated by the investigator (2009), 1000 higher secondary students studying in Virudhachalam Educational District were selected as sample through random sampling technique. Normative survey method is used in the study. The major findings indicate, the higher secondary students have high environmental ethics, higher level of participation in environmental activities and there is significant relationship between environmental ethics and participation in environmental activities of higher secondary students.