Objective: To examine social support as mediators of the relationship between childhood psychological abuse and emotional and behavioral problems. Methods: Through cluster-stratified sampling, 1602 students in middle and primary schools were assessed by Child Psychological Maltreatment Scale (CPMS), School Children Psychological Abuse Self-Report Scale(SPASRS), Perceived Social Support Scale(PSSS) and Strengths and Difficulties Questionnaire(SDQ). Results: The testing of mediating effects showed that childhood psychological abuse had both direct and indirect effects on emotional and behavioral problems, with the direct effect as the main effect. Conclusion: Childhood psychological abuse has direct effects on individuals’ mental health, but also has indirect impacts through social support.