The invention discloses a gas pipeline moving construction method. According to the method, a bypass pipe is laid, so that gas is conveyed in the bypass pipe and a reserved original pipe without stopping, then gas utilization of downstream users is not influenced, a newly-built pipeline is laid, after the new pipeline is laid completely and is put into use, the bypass pipe and the old pipeline aredetached, so that the whole gas pipeline moving engineering is completed. In the construction simulation test and the formal construction process, positioning points and an unmanned aerial vehicle detection and positioning technology are used for detecting the original pipe breaking pipe opening displacement caused by pressure release, the deviation correcting process in the process of formulating a new pipe design scheme is simplified, material waste is reduced, the welding construction environment is detected, the welding quality is guaranteed, the gas replacement process is detected, and the construction safety is guaranteed.