A fingerprint identification apparatus, applicable to be under a display screen to implement under-screen optical fingerprint identification, the fingerprint identification apparatus comprising a plurality of fingerprint identification units arranged in an array, and each fingerprint identification unit of the plurality of fingerprint identification units comprising: a micro-lens; at least one light shielding layer, each light shielding layer of the at least one light shielding layer provided with light passing holes, and a bottom light shielding layer of the at least one light shielding layer provided with N light passing holes, the light passing holes on each light shielding layer of the at least one light shielding layer are used to form N tilted light guiding passages in different tilted directions; wherein a largest aperture Di of each light passing hole of the bottom light shielding layer and a largest aperture CA of the micro-lens satisfy 0.02^Di/CA^0.4, and N is a positive integer greater than 1; a location of each light passing hole of the bottom light shielding layer satisfies 0< S 1 /Z 1 ≤1, wherein Si is a distance from a center of each light passing hole of the bottom light shielding layer to a center of a projection of the micro-lens on the bottom light shielding layer, and Zi is a depth distance between a lower surface of the bottom light shielding layer and a lower surface of the micro-lens; and a radius of curvature ROC of the micro-lens and Z 1 satisfy 0.25≤ROC/Z 1 ≤0.75; N pixel units, disposed under the at least one light shielding layer, and the N pixel units disposed at bottom of the N light guiding passages in one-to-one correspondence; wherein after fingerprint light signals reflected or scattered by a finger above the display screen are converged by the micro-lens, N target fingerprint light signals in different tilted directions are transmitted to the N pixel units through the N light guiding passages respectively, and the N target fingerprint light signals are configured to detect fingerprint information of the finger for fingerprint identification. a micro-lens; at least one light shielding layer, each light shielding layer of the at least one light shielding layer provided with light passing holes, and a bottom light shielding layer of the at least one light shielding layer provided with N light passing holes, the light passing holes on each light shielding layer of the at least one light shielding layer are used to form N tilted light guiding passages in different tilted directions; wherein a largest aperture Di of each light passing hole of the bottom light shielding layer and a largest aperture CA of the micro-lens satisfy 0.02^Di/CA^0.4, and N is a positive integer greater than 1; a location of each light passing hole of the bottom light shielding layer satisfies 0< S 1 /Z 1 ≤1, wherein Si is a distance from a center of each light passing hole of the bottom light shielding layer to a center of a projection of the micro-lens on the bottom light shielding layer, and Zi is a depth distance between a lower surface of the bottom light shielding layer and a lower surface of the micro-lens; and a radius of curvature ROC of the micro-lens and Z 1 satisfy 0.25≤ROC/Z 1 ≤0.75; N pixel units, disposed under the at least one light shielding layer, and the N pixel units disposed at bottom of the N light guiding passages in one-to-one correspondence; wherein after fingerprint light signals reflected or scattered by a finger above the display screen are converged by the micro-lens, N target fingerprint light signals in different tilted directions are transmitted to the N pixel units through the N light guiding passages respectively, and the N target fingerprint light signals are configured to detect fingerprint information of the finger for fingerprint identification.