The piezoelectric film sensor

Sensor unit (11) is provided with two main surfaces facing each other, flat membrane-like piezoelectric film (111a, 111b) between both main surfaces are laminated, the distortion amount of the piezoelectric films (111a, 111b) conductive connecting pattern (112a, 113a) for outputting a piezoelectric voltage in response to form a. Rigid circuit section (12), the main surface of the circuit board (200), the connection pattern (112a, 113a) electrically connected to the conductive connection pattern of the sensor unit (11) (200a, 200b), and connection patterns (200a, 200b) piezoelectric film (111a, 111b) which is input via a processing circuit for processing a piezoelectric voltage corresponding to the amount of strain (201) is formed. Holding members (13a, 13b) is connected pattern (112a, 113a) and connecting patterns (200a, 200b) and in a state of being pressed and held sensor unit (11) and a circuit portion (12).