Milestone is often used in repetitive construction work. This paper describes adaptation of milestone to scheduling technique. Milestone can be applied in two ways. In the first way, manpower coordination is checked and changed according to the probability of achievement at the next milestone, while the one at the final milestone is considered in the second way. Scheduling application on a sample project is shown to evaluate the probability of achievement and working ratio. It can be concluded that milestone is effective in schedule management, whose two methods are developed in this paper.