高速铁路无砟轨道要求具有良好的稳定性、连续性和高平顺性，施工中需采用高精度三维控制测量技术。结合温福铁路飞鸾隧道、甬台温铁路九牛山隧道及凤凰山隧道的测量实践，介绍高速铁路无砟轨道CPIII控制网测量技术的特点、技术要求以及测量方法，并对部分测量误差进行了分析。

he ballastless track of highspeed railways should be of good stability, continuity and high evenness. High accuracy threedimensional control survey technology is needed in the construction of the ballastless track. Taking the survey practice in Feiluan Tunnel on WenzhouFuzhou Railway and Jiuniushan Tunnel and Fenghuangshan Tunnel on NingboTaizhouWenzhou Railway as example, the author presents the characteristics, technical requirements and survey method of CPIII control points survey technology for the ballastless track of highspeed railways and makes analysis on some survey errors.