Pea fiber is the residual product of pea protein and starch extraction. It is a comprehensive product of pea cell wall fiber, polysaccharides, lignin, and other related substances. The fiber content can reach over 50%. Its rich dietary fiber can promote intestinal peristalsis and is an essential nutrient for maintaining human health. Its good water-holding, emulsifying, suspending, and expanding properties can be widely used in meat products, jams, and other foods. Additionally, it produces a sense of fullness when consumed, which has a good regulatory effect on obese individuals. It can also be used as the main raw material for cat litter and fish bait.