Abstract: To examine the mediating effects of self-control and hope in the relationship between parenting styles and school adjustment among junior high school students, 970 students from five junior high schools in Guizhou were subjected to a survey using the Brief Parental Bonding Inventory (BPBI), the Junior High School Adjustment Questionnaire, the Brief Self-Control Scale, and the Children’s Hope Scale. The results showed that: (1) Parenting styles, hope, and self-control can significantly predict junior high school students’ school adjustment; (2) Positive parenting styles can indirectly predict junior high school students’ school adjustment through hope and self-control in a positive direction; (3) Negative parenting styles can indirectly predict junior high school students’ school adjustment through hope and self-control in a negative direction. Parenting styles not only directly affect junior high school students’ school adjustment but also indirectly influence it through the chain mediating role of hope and self-control.