A pressure sensor comprising: a sensor module comprising: (a) a strain gauge configured to measure a pressure of a gas flowing into a passage formed therein; and (b) a sensing port disposed in an inflow side of the passage and comprising a port exposed externally; a substrate electrically connected to the strain gauge; a frame configured to cover at least a portion of the sensor module and support the substrate; a terminal electrically connected to the substrate and configured to come into contact with a contact point of an external device, the terminal comprising: (a) a contactor configured to come into contact with the contact point of the external device and receive a pressing force from the contact point of the external device; and (b) a connector disposed on a lower side of the contactor and electrically connected to the substrate; and a terminal holder configured to support the terminal; wherein an upper side of the substrate comprises a terminal hole into which the connector is inserted, and an end portion of the connector extends in a direction vertical to the substrate and is inserted into the terminal hole, characterised in that: the pressure sensor further comprises a housing of which one side is connected to the sensor module or the frame and another side is configured to cover at least a portion of the terminal holder; the terminal further comprises a resilient portion configured to connect the contactor and the connector, and be resiliently transformed by the pressing force applied to the contactor by the contact point of the external device; and the sensor module further comprises a sensing body connected to the sensing port and disposed in the housing or the frame, wherein the sensing body comprises a sensing face to which the strain gauge is attached, wherein the sensing face is formed to be flat in a direction parallel to a longitudinal direction of the housing, and wherein the substrate is disposed in a direction parallel to the sensing face. a sensor module comprising: (a) a strain gauge configured to measure a pressure of a gas flowing into a passage formed therein; and (b) a sensing port disposed in an inflow side of the passage and comprising a port exposed externally; a substrate electrically connected to the strain gauge; a frame configured to cover at least a portion of the sensor module and support the substrate; a terminal electrically connected to the substrate and configured to come into contact with a contact point of an external device, the terminal comprising: (a) a contactor configured to come into contact with the contact point of the external device and receive a pressing force from the contact point of the external device; and (b) a connector disposed on a lower side of the contactor and electrically connected to the substrate; and a terminal holder configured to support the terminal; the pressure sensor further comprises a housing of which one side is connected to the sensor module or the frame and another side is configured to cover at least a portion of the terminal holder; the terminal further comprises a resilient portion configured to connect the contactor and the connector, and be resiliently transformed by the pressing force applied to the contactor by the contact point of the external device; and the sensor module further comprises a sensing body connected to the sensing port and disposed in the housing or the frame, wherein the sensing body comprises a sensing face to which the strain gauge is attached, wherein the sensing face is formed to be flat in a direction parallel to a longitudinal direction of the housing, and wherein the substrate is disposed in a direction parallel to the sensing face.