Turnout, where a train changes its running track, is one of the crucial technologies in China’s high-speed railway construction, turnout is always the important and difficult to maintenance. In order to keep the high technology of turnout and reduce the maintenance work, we based on the experience of accumulated from the design, manufacture and laid technology of high speed turnout, and the scientific maintenance method of high speed turnout was explored. Maintenance of high speed turnout should be in accordance with its high performance requirements and take appropriate measures of maintenance to ensure the high speed turnout working safely.