In order to assess the reliability and validity of EPOCH psychological wellbeing scale among Chinese adolescents, the present study investigated 417 primary and secondary school students. With another sample of 1759 primary and middle school students, this scale was administrated. It was found that the key school students were significantly higher in Engagement, Perseverance, Optimism,Connectedness and Happiness than the general school students, and girls were significantly higher than boys in Perseverance and Connectedness. With the increase in grade, all of the adolescent’s score patterns on Engagement, Perseverance, Optimism,Connectedness and Happiness showed a decreasing trend.