This study aims to investigate the potential of a modified Cognitive-Behavioral Group Therapy (CBGT) intervention in promoting social adjustment and reducing parental stress among children exhibiting symptoms of attention deficit hyperactivity disorder (ADHD). The research also highlights the mechanisms and advantages of employing modified CBGT counseling to address negative symptoms associated with ADHD in children. The study was conducted at Fuzhou Children’s Hospital of Fujian Province, involving two CBGT counseling sessions held in 2021 and 2022, with a total of 20 pairs of parents and children with ADHD participating. The assessment utilized measures such as SNAP, Barratt Impulsivity, and Conners to evaluate changes in the children’s social adjustment abilities and core/associated ADHD symptoms before and after CBGT intervention. Additionally, the Parental Stress Index was employed to gauge the level of stress experienced by the parents. The results demonstrated that modified CBGT interventions effectively alleviate ADHD symptoms, enhance parent-child relationships, and reduce parental stress levels. Consequently, CBGT interventions have shown substantial improvements in children’s social adjustment abilities and have proven to be a significant source of relief for parents. The study also addresses the limitations associated with existing ADHD treatments and CBGT interventions.