A system for providing customized treatment information for behavioral control of dental patients. The system may include a management server, a hospital server, a waiting room terminal, a terminal determination unit, and a treatment room server. The management server may include an arithmetic process unit and a management server extraction unit. The hospital server may include a hospital server transmission/reception unit. The waiting room terminal may include a terminal extraction unit, a terminal output unit, and a terminal determination unit. The treatment room server may include a treatment server extraction unit, a treatment room server output unit, and a treatment room server determination unit.