This study attempts to predict the demand for primary and secondary school teachers in South and North Korea after unification. The scenario forecasting method was used for the prediction;based on the goal of the number of students per teacher in South Korea. It is anticipated that there will be a large demand for teachers - around 4,000 for elementary school and 4,500 for middle school every year - and this demand is expected to last for ten years after unification. The South Korean teacher-training system might not be able to afford such large demand for primary teachers;and so emergency short-term plans should be considered along with long-term plans for the supply of primary school teachers.