1. An adaptive optical objective inspection instrument for optic nerve function comprising: a sub-system for measuring wave aberration of human's eyes, including a near infrared beacon light source, an intermediate optical system, a wavefront corrector and a wavefront sensor, configured to measure and obtain wave aberration of human's eyes of testee, the intermediate optical system being arranged along an optical path between the near infrared beacon light source and the wavefront sensor, and the wavefront corrector being arranged in the optical path of the intermediate optical system; a sub-system for correcting wave aberration of human's eyes, including the intermediate optical system, the wavefront corrector and a control unit, the control unit configured to drive and control the wavefront corrector to correct the wave aberration of human's eyes of the testee according to the measured wave aberration of human's eyes of the testee; and a sub-system for objectively inspecting optic nerve function, including a visual stimulus displaying unit and a system for collecting visual evoked potential signal, wherein the testee observes a visual stimulation displayed on the visual stimulus displaying unit through the intermediate optical system and the wavefront corrector, and the visual evoked potential signal at a dermal surface of the head is recorded through the system for collecting visual evoked potential signal.