The quickest way from Xi 'an to Shenmu is by high-speed rail or plane. According to Baidu map, the travel time between the two places can be greatly shortened because high-speed trains or planes are high-speed. Specifically, if you choose high-speed rail, you can reach Shenmu in about 5 hours from Xi' an; If you choose a plane, you can complete this journey in about 2 hours. Therefore, if you want to get to Shenmu as soon as possible, it is the best choice to choose high-speed rail or plane.