The invention relates to a laboratory testing method for a multi-field-of-view star sensor. The method comprises the steps that: a dynamics simulation computer respectively generates fixed star maps of a first field of view, a second field of view and a third field of view according to the initial track parameter set by a user, track dynamics, installation direction between the first field of view and an aircraft, installation direction between the second field of view and the sircraft and installation direction the third field of view and the aircraft, and concurrently sends the generated fixed star maps to a first multi-star simulator, a second multi-star simulator and a third multi-star simulator through a VGA (Video Graphics Array), all the fields of view of the multi-field-of-view star sensor respectively shoot the star maps and conduct integration calculation. The practical testing environment of an external field can be entirely simulated through using the testing method, and therefore, the reliability, robustness and the like of the multi-field-of-view star sensor can be tested. The accuracy of the rolling angles of the multi-field-of-view star sensor can be improved by adopting the data integration method, in addition, the method can be used for testing a single-field-of-view star sensor, and therefore, the university of testing equipment can be improved, and the equipment testing cost can be lowered.