以秦岭隧道洞内平面控制测量工程为例，以测量设计为前提，详细论述了长距离贯通隧道洞内平面控制测量的技术要点、布设方法、施测过程中的具体要求及注意事项，对类似工程的控制测量工作具有一定的参考价值。

Taking the horizontal control survey of Qinling Tunnel as an example and on the premise of the survey design, the paper presents in detail the technical points and arrangement methods of the horizontal control survey inside long cutthrough tunnels and the concrete requirements and items to which attention should be paid during the survey. The paper can afford certain conferences for the control survey of similar works in the future.