A pressure sensor, comprising: a hollow sensor main body having a cavity formed therein and having a communication opening through which the inside and the outside of the cavity communicate with each other; a cantilever having a lever main body and a plurality of lever support portions which connect the lever main body and the sensor main body and support the lever main body in a cantilever state, is disposed so as to cover the communication opening , and is configured to be bent according to a pressure difference between the cavity and the outside of the sensor main body ; and a displacement detection unit having a detection electrode formed on the sensor main body , a main body-resistance portion formed on the lever main body , and a lever-resistance portion formed on the lever support portion , and is configured to detect displacement of the cantilever based on resistance variation in resistance values of the main body-resistance portion and the lever-resistance portion , characterized in that a division portion is formed at the lever support portion , and the division portion divides the lever-resistance portion into a first resistance portion which is electrically connected to the detection electrode in series and a second resistance portion which is positioned so as to be closer to the other adjacent lever support portion than the first resistance portion , and electrically separates the first resistance portion and the second resistance portion from each other, and wherein the first resistance portion is electrically connected to the detection electrode via a parallel path of a first path (S1) passing through the main body-resistance portion and a second path (S2) passing through the second resistance portion . a hollow sensor main body having a cavity formed therein and having a communication opening through which the inside and the outside of the cavity communicate with each other; a cantilever having a lever main body and a plurality of lever support portions which connect the lever main body and the sensor main body and support the lever main body in a cantilever state, is disposed so as to cover the communication opening , and is configured to be bent according to a pressure difference between the cavity and the outside of the sensor main body ; and a displacement detection unit having a detection electrode formed on the sensor main body , a main body-resistance portion formed on the lever main body , and a lever-resistance portion formed on the lever support portion , and is configured to detect displacement of the cantilever based on resistance variation in resistance values of the main body-resistance portion and the lever-resistance portion , characterized in that a division portion is formed at the lever support portion , and the division portion divides the lever-resistance portion into a first resistance portion which is electrically connected to the detection electrode in series and a second resistance portion which is positioned so as to be closer to the other adjacent lever support portion than the first resistance portion , and electrically separates the first resistance portion and the second resistance portion from each other, and wherein the first resistance portion is electrically connected to the detection electrode via a parallel path of a first path (S1) passing through the main body-resistance portion and a second path (S2) passing through the second resistance portion . <EOS>