β-conglycinin is major composition of 7S globulin.It represents approximately 25%of the protein in a soybean seed,and affects the nutritional quality and functional properties of soybean protein in soy protein foods.In this review,the general features of soybean β-conglycinin were reviewed;the accumulation regular of soybean β-conglycinin subunits were described;the genetic variants of soybean β-conglycinin and foundation information of genes encoding soybean β-conglycinin are summarized.