The embodiments relate to a pressure sensor comprising: a sensor module which is sensing pressure; a first supporter coupled to an upper portion of the sensor module, having a substrate 231, lengthily disposed therein in an axial direction, and thus electrically connected to the sensor module; and a second supporter to which the substrate is couple while brought into contact with a spring electrode, the second supporter being coupled to an upper portion of the first supporter and having a spring groove in which a lower end portion of spring electrode lengthily disposed in an axial direction is stably placed.