Fingerprint database generation method, fingerprint identification device and storage medium

The invention provides a fingerprint database generation method, a fingerprint identification device and a storage medium. The fingerprint database generation method comprises the following steps: acquiring a current fingerprint image as a standby fingerprint image, wherein the first overlapping area of the current fingerprint image and each standard fingerprint image in a fingerprint database is smaller than a preset area; when the number of the standard fingerprint images in the fingerprint database is smaller than a preset number, adding the standby fingerprint image into the fingerprint database as the standard fingerprint image; and when the number of the standard fingerprint images in the fingerprint database is equal to the preset number, for the standby fingerprint image and all the standard fingerprint images, obtaining second overlapping areas of each fingerprint image and other fingerprint images, and determining and deleting the fingerprint image with the minimum sum of the second overlapping area