Sanhe pig and sheep skewers are a way to express the breeding value and food value of pigs and sheep. This statement comes from the Zodiac Book published in the early days of the founding of the People's Republic of China. It describes that pigs and sheep are similar in size, growth cycle and lifespan, which is why they are called "Sanhe". The strings of strings represent the close connection between the two animals, further emphasizing their similarities and importance in farming and eating.