After a review of the research on the effectiveness of the different treatment modalities used in multimodal treatment of children with hyperkinetic disorders, a decision tree is described for planning multimodal treatment for school-aged children. Differences in treating preschool children are discussed. A mulitmodal treatment program for children with hyperkinetic and oppositional behavior problems is then described. It can be used for children aged 3 to 12 years old. The program has two parts, the parent-child program and the teacher-child program. The program contains intervention units that can be combined as necessary depending on the individual problem configuration. A case study is presented to illustrate the effects of this program in combination with stimulant medication.