Provided are a display device and a manufacturing method thereof. The display device includes an organic light-emitting display panel and a fingerprint identification assembly disposed on a non-light-emitting display side of the organic light-emitting display panel. The fingerprint identification assembly includes a first substrate, a fingerprint identification unit and a light-shielding structure. The fingerprint identification unit and the light-shielding structure are disposed on a same side of the first substrate. The light-shielding structure is disposed between the fingerprint identification unit and the organic light-emitting display panel; the light-shielding structure includes at least two light-shielding layers, each light-shielding layer includes light-transmissive portions and at least one light-shielding portion, and the light-transmissive portions are at least partially surrounded by the light-shielding portion; in a direction perpendicular to the first substrate, positions of light-transmissive portions in one light-shielding layer are in one-to-one correspondence with positions of light-transmissive portions in another one light-shielding layer.