In this application, a seasoning having a function of imparting a kokumi taste, characterized by containing as an active ingredient, a glycopeptide which has a molecular weight of from 1,000 to 30,000 and is composed of a sugar chain and a peptide linked to each other is disclosed. This seasoning can be more widely used in foods and drinks and has a strong effect of improving the tastes of the foods and drinks, thereby being capable of imparting a kokumi taste, in particular, a kokumi taste of a first taste and a middle taste.