Fingerprint sensing apparatus

A fingerprint sensing apparatus adapted to sense a fingerprint of an user including an imaging sensor, a light source and a light guide plate is provided. The imaging sensor is disposed at a first side of the light guide plate, and the light source is disposed at a second side of the light guide plate. The first side is opposite to the second side. The light guide plate includes a plurality of optical fiber elements, wherein each of the optical fiber element includes a fingerprint end adjacent to fingerprint and a sensing end adjacent to the imaging sensor. A cross-sectional area of a fiber core of the optical fiber element decreases from the fingerprint end to the sensing end.