An intraoral moisture measuring device 1 includes: a swing member 20 that swings with respect to a main body 10 about a predetermined swing center C a moisture amount detection unit 30 provided at a tip of the swing member 20, for detecting a moisture amount by being directly or indirectly abutted against a measurement site 200 in a mouth and a biasing member 40 for biasing the swing member 20 in one of swing directions. Consequently, the intraoral moisture measuring device capable of measuring intraoral moisture in a simple and highly-accurate manner is provided.
