School-age children are in the 6-12 year age range that enters the development of industries where children develop their productivity. Failure to achieve the task of development causes mental health problems in children. The purpose of this paper is to know the results of therapeutic group therapy application on the development of school age children industry with empowerment of caregivers, teachers, and mental health cadres. The design of this paper uses Case Series. Samples of 30 school-aged children were divided into 3 groups and Therapeutic Therapeutic Therapy was conducted to train the stimulation of developmental aspects. Children received 2 therapeutic group therapy classes at Primary School as many as 6 meetings accompanied by caregivers, teachers, mental health cadres and therapeutic groups therapy in the community as much as 3 meetings accompanied by caregivers and mental health cadres. The results showed the development of children's industry increased to 98.46% and the children's developmental aspects of motor, cognitive, language, emotion, personality, moral, spiritual, and psychosocial increased and the family's ability to stimulate child development increased to 93.33%. The results of previous research shows the development of children's industry by 80.33% after therapeutic group therapy of school-aged children by involving only caregivers and teachers. The article recommendation is the promotion of mental health of school age children in elementary schools and in the community by involving children, families/caregivers, teachers and mental health cadres for sustainable nursing care.