PROBLEM TO BE SOLVED: To provide a metal ceramic joint body capable of suppressing occurrence of distortion in a joint matter, a diaphragm vacuum gage, a joint method of metal and ceramic, and a method of manufacturing the diaphragm vacuum gage.SOLUTION: A diaphragm vacuum gage includes: a reference container 11 formed in a cylindrical shape having an opening 11a; a diaphragm formed in a plate shape blocking the opening 11a; a joint layer 21 made of glaze for joining the diaphragm to the reference container 11; and a terminal layer 22 made of glaze formed at a part on the surface of the reference container 11 that is separate from the diaphragm. The joint layer 21 is continuous to the terminal layer 22.
