The problem is to provide an [alpha],[alpha]-trehalose dihydrate crystal-containing powder having excellent emulsifying capacity； and the problem is solved by providing an [alpha],[alpha]-trehalose dihydrate crystal-containing powder comprising particles containing [alpha],[alpha]-trehalose and maltose and/or maltotriose, wherein the [alpha],[alpha]-trehalose dihydrate crystal-containing powder contains 70-90 mass% of [alpha],[alpha]-trehalose in terms of anhydride and contains a total of 3 mass% or more of maltose and/or maltotriose in terms of anhydride, and the degree of crystallization of the [alpha],[alpha]-trehalose dihydrate crystals calculated on the basis of the powder x-ray diffraction profile is 25% to less than 90%.
