According to Baidu map, the whole journey from Jiuquan to Dunhuang is about 40 1.9 km, and it takes about 4 hours and 43 minutes to drive, passing through Lianhuo Expressway and Liu Ge Expressway.
Recommended food in Dunhuang: donkey meat yellow noodles, mutton powder soup, Dunhuang stuffed skin, minced meat mixed noodles, oil cakes, etc.