A fingerprint identification apparatus applicable to an electronic device having a display screen, comprising: an optical fingerprint sensor configured to be disposed under the display screen to implement under-screen optical fingerprint detection, wherein the optical fingerprint sensor comprises a photosensitive region, the photosensitive region comprises a plurality of sensing units, and the sensing units are configured to detect an optical signal returned via reflection on a finger surface; a light path directing structure configured to be disposed between the display screen and the optical fingerprint sensor to transmit the optical signal returned via the reflection on the finger surface to the photosensitive region of the optical fingerprint sensor; and a filter film formed above the photosensitive region of the optical fingerprint sensor and configured to filter the optical signal to filter out interference light, wherein the filter film is a plating film formed on a surface of the optical fingerprint sensor, and the plating film covers the sensing units of the photosensitive region; wherein the optical fingerprint sensor is used as a base material of the filter film to bear the filter film to form a filter configured to filter out the interference light; wherein the light path directing structure comprises a micro-lens layer and a micro-hole layer, the micro-lens layer comprises a micro-lens array having a plurality of micro-lenses, the micro-hole layer comprises a micro-hole array having a plurality of micro-holes formed in at least one light shielding layer, and the micro-hole array is formed under the micro-lens array; and the micro-lenses are configured to converge the optical signal returned via the reflection on the finger surface to the micro-holes and transmit the optical signal to corresponding sensing units through the micro-holes; the light path directing structure is directly grown above the filter film by a semiconductor manufacturing process so that the light path directing structure is integrated with the filter film and the optical fingerprint sensor into a same optical fingerprint sensor chip; wherein the light path directing structure comprises a passivation layer, a first transparent medium layer and a second transparent medium layer, and the first transparent medium layer is formed above the micro-hole layer and at least partially fills the micro-holes; and the passivation layer is formed between the micro-lens layer and the first transparent medium layer; and the second transparent medium layer is formed under the micro-hole layer and the second transparent medium layer is formed above the filter film. an optical fingerprint sensor configured to be disposed under the display screen to implement under-screen optical fingerprint detection, wherein the optical fingerprint sensor comprises a photosensitive region, the photosensitive region comprises a plurality of sensing units, and the sensing units are configured to detect an optical signal returned via reflection on a finger surface; a light path directing structure configured to be disposed between the display screen and the optical fingerprint sensor to transmit the optical signal returned via the reflection on the finger surface to the photosensitive region of the optical fingerprint sensor; and a filter film formed above the photosensitive region of the optical fingerprint sensor and configured to filter the optical signal to filter out interference light, wherein the filter film is a plating film formed on a surface of the optical fingerprint sensor, and the plating film covers the sensing units of the photosensitive region; wherein the optical fingerprint sensor is used as a base material of the filter film to bear the filter film to form a filter configured to filter out the interference light; wherein the light path directing structure comprises a micro-lens layer and a micro-hole layer, the micro-lens layer comprises a micro-lens array having a plurality of micro-lenses, the micro-hole layer comprises a micro-hole array having a plurality of micro-holes formed in at least one light shielding layer, and the micro-hole array is formed under the micro-lens array; and the micro-lenses are configured to converge the optical signal returned via the reflection on the finger surface to the micro-holes and transmit the optical signal to corresponding sensing units through the micro-holes; the light path directing structure is directly grown above the filter film by a semiconductor manufacturing process so that the light path directing structure is integrated with the filter film and the optical fingerprint sensor into a same optical fingerprint sensor chip; wherein the light path directing structure comprises a passivation layer, a first transparent medium layer and a second transparent medium layer, and the first transparent medium layer is formed above the micro-hole layer and at least partially fills the micro-holes; and the passivation layer is formed between the micro-lens layer and the first transparent medium layer; and the second transparent medium layer is formed under the micro-hole layer and the second transparent medium layer is formed above the filter film.