A child with five delay, five ankylosis, five weakening needs to take herbal medicine for a long term. So safety, efficacy inspection for the long term usage of herbal medicine and mixed dose is needed because other medication or functional health foods, etc could be taken during this process. Operated liver function test before and after dosing herbal medicine to one hundred and sixty children who aided private oriental medicine located in Seoul, and measured the efficacy by comparing sleeping hours, morbidity, stamina, sanguineness, personality, digestion with the state before taking herbal medicine based on questionnaire done by the parents. Every children were under the limits, and there were no differences between boys and girls, and no notable differences according to family histories. There were positive results in efficacy inspection ordered as improvement in personality, stamina, sanguineness, decrease in morbidity, increase in appetite, digestion. No signs of disorder in liver function has been found during the dose of herbal medicine or simultaneous medicine, and shown promotion of health.