PURPOSE: To reduce noise due to external influence such as temperature change and make it possible to use a semiconductor pressure sensor also for an organic solvent gas.

CONSTITUTION: A sensor element 20 of a semiconductor and a pressure introducing cylinder 25 for introducing a pressure to be measured are joined airtightly. A plurality of spacers 30 including a spherical silicon, ceramic, or silica powder in nearly equal diameter are pinched in one layer between the sensor element 20 and the pressure introducing cylinder 25, and fluoro-silicone resin 32 is filled in the gap for connection.