To provide a fingerprint matching device by which a clear fingerprint pattern is obtained, and a fingerprint image with a good contrast is obtained even when fingernails are manicured.

The fingerprint matching device comprises a light radiating means 11 for irradiating a finger tip with light from two directions, an image sensor 2 for generating a fingerprint image from the transmittance light that transmits through finger tip, an area cutting out means 12 for cutting out a frame area based on the irradiation direction from the generated fingerprint image, an image composing means 13 for composing the frame area cut out for each fingerprint image and generating a new fingerprint image, a fingerprint image storage means 15 for storing a fingerprint image for each user, and a fingerprint identification means 14 for identifying a user based on the generated fingerprint image.

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