According to the analysis, the nutritional components of bean curd residue and soybean meal are: crude protein 3.0 ~ 40.0, crude fat 0.4 ~ 7.0, ash 0.3 ~ 5.8, carbohydrate 1.6 ~ 24.2. It was tofu residue before, and then soybean meal. It can be seen that the crude protein content of bean curd residue is too low to be used as protein feed, but it can be used as carbohydrate feed. If the source is sufficient and the price is cheap, it can be used for many purposes.