A method, device, and terminal for improving a fingerprint template are proposed. The method includes: receiving first feature information of a recorded fingerprint image based on preset fingerprint feature types; determining a degree of matching between the first feature information and second feature information based on the second feature information corresponding to the fingerprint feature types in a registered fingerprint template; determining whether the degree of matching is higher than or equal to a preset compensation threshold value; and acquiring a compensation image having no intersection with the fingerprint template from the fingerprint image if the degree of matching is higher than or equal to the compensation threshold value, and adding the compensation image to the fingerprint template.