基于病理性互联网使用的认知−行为模型，探究积极同伴压力对初中生病理性互联网使用的影响及其作用机制。采用同伴压力量表、儿童希望量表、意向性自我调节问卷和青少年病理性互联网使用量表对739名初中生进行施测。结果发现：(1)积极同伴压力与初中生病理性互联网使用之间存在显著负相关；(2)希望在积极同伴压力与初中生病理性互联网使用之间具有中介作用；(3)积极同伴压力能通过希望和意向性自我调节的链式中介作用间接预测初中生病理性互联网使用。本研究揭示了积极同伴压力与初中生病理性互联网使用之间的内在机制，为预防和干预青少年病理性互联网使用提供了新思路。

Based on the cognitive-behavioral model of pathological internet use, this study aimed to examine the association between positive peer pressure and pathological internet use among middle school students, and further explore the mediating effect of hope and intentional self-regulation between positive peer pressure and middle school students’ pathological internet use. A total of 739 middle school students were recruited to complete Peer Pressure Scale, Children’s Hope Scale, Intentional Self-Regulation Questionnaire, and the Adolescent Pathological Internet Use Scale. The results showed that: 1) there was a significant negative correlation between positive peer pressure and pathological internet use among middle school students; 2) hope played a mediating role between positive peer pressure and pathological internet use among middle school students; 3) positive peer pressure could predict middle school students’ pathological internet use through the chain mediating effect of hope and intentional self-regulation. These findings indicate the internal mechanism between positive peer pressure and pathological internet use among middle school students, which provides new insights into the prevention and treatment of pathological internet use among adolescents.