Fried noodles are a traditional food in northern China, just as fried rice is a traditional food in southern China. Due to different regions, the raw materials of fried noodles are slightly different, such as millet, kidney beans and corn as the main raw materials in Shanxi, corn, highland barley and beetroot as the raw materials in Longzhong, and wheat, soybean and sorghum as the raw materials in Northeast China.

Although the raw materials for making fried noodles vary from place to place, the methods of making and eating are similar. All the raw materials are fried and ground into powder according to a certain proportion, which is instant fried noodles. So fried noodles are completely different from fried noodles that young people think of now. It is a powdered cooked food, which can be blanched with boiling water and stirred into a paste. Until now, mixing persimmon juice and fried noodles into persimmon fried noodles is still a breakfast in some places in southern Shanxi. In many places, fried noodles are even famous products, such as Jiezhou fried noodles, Camellia oleifera and Zuo Quan fried noodles, which are the most famous in local snacks, but they are more particular when eating. Steamed sweet potatoes and soft persimmons are used to stir into slurry.

The Eighth Route Army fought in the north for many years, and its headquarters was stationed in Zuoquan County (formerly Liao County) for a long time. J is certainly no stranger to fried noodles, a folk fast food.

Unlike most people who think that the People's Army only started eating fried noodles in North Korea, as early as the Red Army period, the People's Army had an indissoluble bond with fried noodles. During the Long March, the grass was crossed, and the three legions took highland barley noodles as their staple food. The highland barley noodles mentioned here are actually "highland barley fried noodles", which are all made by frying and grinding highland barley flour before entering the grassland. We often see from various memoirs of the Long March that leaders hold enamel cups and evenly stir highland barley noodles.

While waiting for the second counter-campaign against encirclement and suppression, the Central Red Army ate fried rice, because only rice was produced in the south. It can be seen that fried rice and fried noodles, a folk fast food, was indeed the best field food that the People's Army could find at that time, so it was almost inevitable that fried noodles appeared on the Korean battlefield and even became the staple food of the volunteers.