This tutorial will provide the basic knowledge of steam turbines from design to operation in half and more detail technical information, which will be useful for design audit, trouble shooting, enhance participants, their own machines, how to approach in other half. An emphasis is placed on providing practical and technical information. Fundamental technology - Classification of steam turbine - Flow dynamics of steam turbine - Turbine control system Latest technology - Reliability improvement - Inspection, Technical support by remote - Typical RCA of steam turbine