The invention discloses an illumination-adjustable automobile panoramic vision detection system based on an elliptical reflection ring, and aims at solving the problem of elliptical reflection ring-based illumination-adjustable automobile panoramic vision detection. The illumination-adjustable automobile panoramic vision detection system based on the elliptical reflection ring is mainly composed of the elliptical reflection ring (1), a transparent glass column (2) with a parabolic reflector, a camera base (3), a panoramic camera (4), a lamp holder (5) and an LED lamp (6). An axis of a steel round shaft of the lamp holder (5) penetrates through a light center of the LED lamp (6); the light center of the LED lamp (6) and a focal point of the parabolic reflector of the transparent glass column (2) with the parabolic reflector are both located on the same cross section of the elliptical reflection ring (1); and the illumination-adjustable automobile panoramic vision detection system basedon the elliptical reflection ring, which is simple in structure and reliable in performance, is provided.