Possibility of preparation of a pea resistant starch concentrate and its sorption of hydrophobic substances were studied. Pea starch appeared a good source of resistant starch concentrate. The use of thermostable alpha-amylase in technological process provided the preparation containing up to 70% of resistant starch. It contained the admixture of mineral and organic nitrogen compounds. Its crystallographic pattern belongs neither A- nor B-type. The pea-RS concentrate had the affinity to bile acid, deoxycholic, and also to cholesterol although the latter is not as efficient than that of native pea starch. Thus, pea resistant starch concentrate has potential regulatory properties and, therefore, it might be used as a food component in special diets or for preventive, prophylactic, and therapeutic purposes.