Objective: The purpose of this study was to investigate the impact of cognitive behavioral therapy on wandering and care burdens for patient with dementia. Method: The study used ABA design of single subject experimental research. Three patients with dementia and wandering volunteered for the study. The experiment composed of 18 sessions in total: 3 sessions for baseline, 12 sessions for cognitive behavioral therapy and 3 sessions for the second baseline. Each session for CBT took 30 minutes. The wandering was measured by Revised Algase Wandering Scale-Nursing Home version: RAWS-NH. Neuropsychiatric Inventory Questionnaire(NPI-Q) was measured both before and after the therapy. The follow up test was measured RAWS-NH and NPI-Q. CBT was performed group therapy and breathing retraining & muscle relaxation training. A visual analysis was conducted using a graph, and changes in values were analyzed before and after the therapy to analyze the experimental results. Result: All subjects decreased in RAWS-NH and NPI-Q. The follow up test also showed to decrease all subjects. Conclusion: CBT had a positive impact on wandering of dementia patients and also increased care burdens.