For the purpose of effectively screening out raw legume proteins in experimental study and initial stage of product development,this paper analyzed 5 types of legume protein powder in terms of their amino acid distribution,nutritional value,mobility,solubility,color difference,protein digestibility,and antioxidant ability to gain a comprehensive understanding of the practical and nutritional properties of each protein powder.The results indicated pea protein contained the richest lysine and presented the most intense brightness;chickpea protein powder had the amino acids proportions of which reached adult amino acid scoring mode requirements and the highest nutritional value;soybean protein powder also met adult amino acid scoring mode requirements with the highest solubility,digestibility,and good antioxidant ability;broad bean protein powder showed the best mobility;and mung bean protein powder was less soluble and digestive.