The invention discloses a method for automatically identifying leukocytes in a leucorrhea microscopic image, and belongs to the field of medical digital image processing, particularly an algorithm for automatically identifying leukocytes in a leucorrhea microscopic image. According to the method, the microscopic image is subjected to gray-scale processing, then communication regions in the image are searched, the communication regions in the image are sequentially screened according to actual morphologies of the leukocytes, and finally, a leukocyte image in leucorrhea is identified, so that working time of a worker and personal errors are greatly reduced, and working efficiency is improved.