A meter device which can be mounted and removed easier than conventional meter devices. A meter device is provided with a display plate, a circuit board, a middle case which is disposed on the front surface side of the circuit board and on which the display plate is mounted, an upper case which is disposed on the front surface side of the middle case and through which the front surface can be seen, and a lower case which covers the middle case and the circuit board. A flange section which is sandwiched and held between the upper and lower cases is provided to the peripheral edge of the middle case. One of the upper case and the lower cases is provided with engagement sections, and engagement sections which engage with the engagement sections are provided to the other of cases so as to correspond to the engagement sections.