Positioning method of glass slide detector, detector and glass slide

The invention relates to a positioning method of a glass slide detector, a detector and a glass slide. The positioning method comprises the following steps: determining a positioning initial position and a scanning initial position of a microscope on the detector; the positioning starting position is any position outside the positioning frame and the object carrying area on the glass slide; the scanning starting position is a corner point of the object carrying area; according to the positioning starting position and the scanning starting position, determining a movement track of the microscope moving from the positioning starting position to the scanning starting position; moving the microscope according to the moving track, and acquiring a current image of the microscope at each moving point; and judging whether the current image is a full-white image or a full-black image, positioning the microscope to the angular point of the object carrying area according to a judgment result, and taking the angular poin