Objective: To evaluate the mental healthy status of the youths in the longevity area of Yongfu County in northern Guangxi. Methods: The survey was conducted by using SCL90 among the youths of 12 districts in northern Guangxi including Yongfu County. Results: Compared to the norm of Chinese youths, the youths of 11 districts in northern Guangxi including Yongfu County had higher score for each mental factor of SCL90(P < 0.05). Hierarchical cluster analysis showed that the youths of all counties in northern G...