An integrated physiological signal detection sensor, wherein the sensor comprises a movable housing member, a fixed housing member, and a sensing unit circuit board, wherein the movable housing member and the fixed housing member are by a flexible rubber gasket to form an internal space therebetween; wherein the sensing unit circuit board is located in the internal space jointly formed by the movable housing member and the fixed housing member, and is fixedly mounted on the fixed housing member; wherein two piezoelectric films are respectively attached to a surface of the sensing unit circuit board, wherein, the piezoelectric films are respectively attached to a surface of the sensing unit circuit board facing the movable housing member; wherein the movable housing member is provided at each of positions corresponding to one of the piezoelectric films with a protrusion, wherein each of the protrusions is coupled to the respective piezoelectric film, and vibration signals are transmitted to each of the piezoelectric films via the respective protrusion of the movable housing member; wherein: the sensing unit circuit board is fixedly mounted on the fixed housing member via set screw columns; each of the piezoelectric films and the fixed housing member are provided therebetween with a flexible pad; wherein the flexible pad mitigates vibration interference caused by action of an external pressure applied to the fixed housing member, so that the piezoelectric films obtains more accurate vibration signals; each of the two piezoelectric films on the sensing unit circuit board is attached to an edge of the sensing unit circuit board, and the sensing unit circuit board is provided with two right-angle hollowed-out regions, each of the two right-angle hollowed-out regions surrounding the periphery of one of the two piezoelectric films, so that a piezoelectric film region on the sensing unit circuit board surrounded by the hollowed-out region vibrates freely to form a suspended beam structure; and one remaining non-hollowed side is used for wire routing. wherein two piezoelectric films are respectively attached to a surface of the sensing unit circuit board, wherein, the piezoelectric films are respectively attached to a surface of the sensing unit circuit board facing the movable housing member; wherein the movable housing member is provided at each of positions corresponding to one of the piezoelectric films with a protrusion, wherein each of the protrusions is coupled to the respective piezoelectric film, and vibration signals are transmitted to each of the piezoelectric films via the respective protrusion of the movable housing member; wherein: the sensing unit circuit board is fixedly mounted on the fixed housing member via set screw columns; each of the piezoelectric films and the fixed housing member are provided therebetween with a flexible pad; wherein the flexible pad mitigates vibration interference caused by action of an external pressure applied to the fixed housing member, so that the piezoelectric films obtains more accurate vibration signals; each of the two piezoelectric films on the sensing unit circuit board is attached to an edge of the sensing unit circuit board, and the sensing unit circuit board is provided with two right-angle hollowed-out regions, each of the two right-angle hollowed-out regions surrounding the periphery of one of the two piezoelectric films, so that a piezoelectric film region on the sensing unit circuit board surrounded by the hollowed-out region vibrates freely to form a suspended beam structure; and one remaining non-hollowed side is used for wire routing. the sensing unit circuit board is fixedly mounted on the fixed housing member via set screw columns; each of the piezoelectric films and the fixed housing member are provided therebetween with a flexible pad; wherein the flexible pad mitigates vibration interference caused by action of an external pressure applied to the fixed housing member, so that the piezoelectric films obtains more accurate vibration signals; each of the two piezoelectric films on the sensing unit circuit board is attached to an edge of the sensing unit circuit board, and the sensing unit circuit board is provided with two right-angle hollowed-out regions, each of the two right-angle hollowed-out regions surrounding the periphery of one of the two piezoelectric films, so that a piezoelectric film region on the sensing unit circuit board surrounded by the hollowed-out region vibrates freely to form a suspended beam structure; and one remaining non-hollowed side is used for wire routing.