The oatmeal noodles machine, also known as the oatmeal noodles machine (kaolaolao), is a machine that makes oatmeal noodles into a barrel shape. It is mainly used in Shanxi and Shanxi where oatmeal noodles are the staple food. In places such as northern China and western Inner Mongolia, the disadvantages of making nests by hand are time-consuming, laborious, and difficult to master. The nests made by machines have neat appearance, thin and smooth walls, and are delicious to eat.