Life Size Liver Model is a biological teaching tool made according to the actual size and shape of an adult liver, used to demonstrate the anatomical structure and functional zoning of the liver. In biology teaching, a real proportion liver model can help students intuitively understand the shape, position, and relationship with adjacent organs of the liver. Students can learn the internal structure of the liver, such as hepatic lobules, central veins, portal veins, and hepatic arteries, by observing the model. The real proportion liver model is a very practical auxiliary tool in medical and biological education, which helps to improve students' professional knowledge and spatial cognitive ability.