Calibration device and calibration method for inclinometer

The invention discloses an inclinometer calibration device and a calibration method, relates to the field of measurement, and aims to solve the technical problems that an inclinometer calibration device in the prior art is large in error and not easy to carry. The device comprises a base, a fixing rod, a carrying flat plate, a subdivision ruler and a main ruler, one end of the main ruler is fixed to the carrying flat plate, the subdivision ruler is fixedly connected to the fixing rod, and the bottom end of the fixing rod is connected to the base; one end of the loading flat plate is hinged and locked with the fixing rod, and when the inclinometer calibration device is in an initial state, the loading flat plate is attached to the base and is used for supporting the inclinometer; the main ruler and the subdivision ruler are both provided with arc-shaped edge lines, the main ruler is matched with the subdivision ruler, and the inclination angle value of the object carrying flat plate is read through the scale m