Abstract: With the rapid development of China's economy and construction industry, the railway construction has been greatly influenced by it. In order to realize the networking operation between high-speed railways and between high-speed and general speed railways, this paper systematically analyzes the key problems of construction control,such as the uniform and accurate stress release of small radius lines 800 m and below, in the construction process of jointless track, and puts forward solutions, in order to provide reference for engineering construction.