The obtained oral mounting fixture can be used in public such as during conversation with other people when halitosis is of particular concern and can be used at any time with no limit to the timing of use, and thus further effectively promotes the secretion of saliva. The oral mounting fixture configured to be mounted inside an oral cavity of a human and promote the secretion of saliva has a main body section 1 that can be detachably mounted on a part in the oral cavity, and having a shape arranged so that the main body section 1 conforms to the shape of a portion on which the oral mounting fixture is mounted, and plural protrusions 2 that are integrally formed in the main body section 1 and protruding from the surface of the main body section 1. This oral mounting fixture is mounted so that the tips of the plural protrusions 2 press on a mucosa in the oral cavity.