The invention discloses a monocular camera object identification and positioning method based on a vector illumination influence removal algorithm, and the method comprises the steps of S1, collecting an image map through a robot, and carrying out illumination removal processing on the image map; S2, filtering the image map after illumination removal processing, and obtaining a filtered image; S3, performing color space conversion on the image, and obtaining a binary image according to the color threshold value of the target object; S4, eliminating interferents outside target area, determining a target object, and obtaining the image coordinates of the target object; S5, judging whether the target object exists in the target area or not according to the image coordinates of the target object, and if not, returning to null and ending the identification and positioning; if yes, returning to the center coordinate of the target object, then adjusting the head angle and the body posture of a robot to enable the center coordinate of the target object to coincide with the center position of the image, then solving the distance from the target object to the robot according to a calculation model, and obtaining the recognition result of the target object.