The present invention provides a powder material obtained by drying an aqueous emulsion containing at least one component selected from the group consisting of perfumes, coloring agents and functional substances, trehalose and water-soluble hemicellulose. This powder material has excellent shelf stability of the perfume, coloring agent and/or functional substance, and can impart a desired fragrance, flavor, color and/or function stably to various drinks, foods, cosmetics and the like for a long period of time.