The relationship between thinking styles, as defined in Sternberg's theory of mental self-government, and mental health was investigated. 583 university students (362 women, 221 men; M age = 21.4 yr., SD = 0.9) in Guangzhou, P. R. China, were invited to fill out the Thinking Styles Inventory-Revised and the Symptom Checklist-90 on a voluntary basis. Results indicated that scores on six of Sternberg's 13 thinking styles were significantly correlated with the Mental Health Index. The hierarchical style (one Type I style) negatively predicted the General Severity Index beyond sex and age, whereas the judicial, anarchic, and internal styles did so positively. The specific ways in which the thinking styles and mental health scales were related to one another supported Zhang and Sternberg's (2006) claim that thinking styles are value-laden. Applications of thinking styles in enhancing mental health are discussed.