PROBLEM TO BE SOLVED: To provide production methods of tablets which can inhibit tableting disorder and can easily and efficiently produce tablets with sufficient tablet hardness even if the content of a functional raw material having inferior compression-moldability is increased； and to provide granules for tablet raw materials which can be used suitably for producing the tablets, as well as to provide production methods thereof.SOLUTION: Disclosed is a method of producing a tablet comprising injecting gas into liquid containing a functional raw material having inferior compression moldability to prepare a gas-containing liquid, spray-drying the gas-containing liquid to prepare granules, tableting a mixture containing the granules to prepare a tablet； and a production method of granules of a functional raw material having inferior compression moldability for tablet raw materials comprising injecting gas into a liquid containing a functional raw material having inferior compression moldability to prepare a gas-containing liquid, and spray-drying the gas-containing liquid to prepare granules； and the like.SELECTED DRAWING: None
