PURPOSE: A calibration system of an inertia measuring device is provided to more accurately measure and correct errors of an inertia measuring device required for performing a research with respect to a navigation of a flight vehicle or moving body by adding a rotational movement to a simple pendulum movement. CONSTITUTION: A calibration system of an inertia measuring device comprises a pendulum movement device, a rotational angle detecting unit, an inclination detecting unit(500), a signal processing unit, and a data collection processing unit(700). The pendulum movement device is joined to a rotary shaft so that a rotational rod where an inertia measuring device is fixed is pendulated. The rotational angle detecting unit detects a reference angular value due to a rotation of the rotary shaft. The inclination detecting unit detects a change of the inclination of the inertia measuring device in a pendulum movement. The signal processing unit receives a measurement value obtained from the inertia measuring device and the reference angular value for correcting errors of the rotational angle detecting unit and inclination detecting unit and the inclination change value, thereby synchronizing. The data collection processing unit collects the reference angular value and measurement value and post-processes and corrects errors.
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