Highly accelerated stress test method of angular displacement sensor

The invention relates to the reliability test technology of an angular displacement sensor, in particular to a highly accelerated stress test method of an angular displacement sensor. The method is characterized in that high-temperature working limit and low-temperature working limit are determined through high-temperature and low-temperature stepping assessment, vibration working limit is determined through vibration stepping assessment, and the high-temperature working limit, the low-temperature working limit and the vibration working limit provide reliability assessment to the design parameters of the angular displacement sensor; the temperature lower limit in the test is lowered from -45 DEG C to -90 DEG C, the temperature upper limit is increased from 70 DEG C to 135 DEG C, temperature change rate is increased from 10 DEG C/min to 40 DEG C/min, vibration load is changed from single axis to three-axial-direction six-freedom-degree excitation, reliability assessment requirements of the angular displacement sensor are increased, time of the reliability test can be reduced correspondingly, and a new approach is provided to the reliability test method of highly accelerated stress.