An emulsion and dispersion system exhibiting excellent stability against heat and excellent stability over a long period time in interfaces between functional oily bases and water, or between functional granules as solid particles and water, etc., a cosmetic composition containing an emulsifying dispersant which is capable of performing emulsification and dispersion independently of required HLB values of the functional oily bases or the surface states of the functional granules, and a producing method of such a cosmetic composition. A cosmetic composition characterized in that an emulsifying dispersant including polysaccharides with particulate structure as a main component, and components to be emulsified are contained, and a producing method thereof. And a cosmetic composition characterized in that the emulsifying dispersant exists as a three-phase emulsifying dispersant which adheres to a periphery of the components to be emulsified like a layer to form an intermediate layer, and a producing method thereof.