Cold noodles, usually referred to as Korean cold noodles, are a traditional ethnic food that is well-known at home and abroad and is loved by people. Among them, the cold soba noodles are particularly famous. Generally beef soup or chicken soup is used, accompanied by spicy cabbage, meat slices, eggs, cucumber shreds, pear strips, etc. When eating, first put a small amount of cold soup and an appropriate amount of noodles in the bowl, then add the condiments, and finally pour the soup again. The noodles are thin and tough, the soup is cool, sour and spicy.