Provided are a method for producing an orally disintegrating tablet that exhibits rapid disintegration while maintaining the hardness of the tablet, and a method for shortening the disintegration time of the orally disintegrating tablet while maintaining the hardness of the tablet. The method for producing an orally disintegrating tablet according to the present invention comprises the steps (A) of obtaining a first granulated product containing a pharmaceutical ingredient by spraying a granulating liquid while allowing core particles to flow in a fluidized bed granulator. A step (B) of subjecting a dry granulation raw material containing granules to dry granulation to obtain a second granulated product, and a step of tableting a tableting raw material containing the second granulated product (C) Comprising.錠剤の硬度を維持しながら速やかな崩壊性を示す口腔内崩壊錠の製造方法、および、錠剤の硬度を維持しながら口腔内崩壊錠の崩壊時間を短縮する方法を提供する。本発明の口腔内崩壊錠の製造方法は、核粒子を流動層造粒機内で流動させながら造粒液を噴霧し、医薬成分を含む第一造粒物を得る工程（Ａ）、第一造粒物を含む乾式造粒用原料を乾式造粒に付し、第二造粒物を得る工程（Ｂ）、および、第二造粒物を含む打錠用原料を打錠する工程（Ｃ）を含んでなる。
