The present invention provides a method for producing a powder containing an oil-soluble substance, fromn which substantially no oil-soluble substances are eluted upon application of pressure, heat, or water. The present invention relates to a method for producing a powder containing an oil-soluble substance, which comprises, dispersing an oil-soluble substance and a calcium component in an aqueous solution in the presence of a surfactant, and then drying the thus obtained liquid mixture.