PROBLEM TO BE SOLVED: To provide a tongue pressure measuring pad that can be stably positioned at an appropriate position in the oral cavity with a simple and inexpensive configuration, a manufacturing method thereof, and an apparatus for measuring internal pressure of the oral cavity.SOLUTION: A tongue pressure measuring pad 1 includes a hollow part 11 for measuring tongue pressure, and a tubular connection part 12 for measuring tongue pressure communicated with the inside of the hollow part 11 for measuring tongue pressure. A positioning part 113 is provided for positioning the hollow part 11 for measuring tongue pressure in the oral cavity by the contact of the tip of the tongue with the underside of the hollow part 11 for measuring tongue pressure in a state that the hollow part 11 for measuring tongue pressure is arranged between the tongue and the palate.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2018,JPO&INPIT