Recently, the development of new and renewable energy is progressing actively. There is growing interest in infinite and clean tidal energy generated by the effects of sun and moon
movement. There are two methods for tidal power generation. The first one is two-way type(interactive) which is generating both rising (tide) and edd (tide), and second one is a singletype which applies only one of them. Single-type is divided into a flood type that generates when seawater rise, and ebb type that generates when seawater going down. The flood type tidal power optimization operation program has already been applied to the Sihwa tidal power plant of Korea to produce optimum and maximum power generation. Development of interactive Tidal Power Program(K-TOP3.0) can be applied to various types of tidal power plants all over the world. In addition, tidal energy business is expected to expand by optimizing tidal power generation operation technology.