Palm vein optical system and palm vein recognition terminal

The utility model provides a palm vein optical system and a palm vein recognition terminal. The palm vein optical system comprises a camera assembly; the near-infrared light supplementing lamp is arranged on the periphery of the camera assembly; the optical lens comprises a light inlet face, a light outlet face, a light reflecting side face and a center through hole, the light inlet face is provided with a plurality of lamp cavities, first concave transparent faces are arranged in the lamp cavities, the light outlet face is provided with a second concave transparent face with the central axis of the center through hole as the center, and the light reflecting side face is arranged in an inclined mode. According to the palm vein optical system and the palm vein recognition terminal, the overall height of the palm vein optical system can be reduced, and application and installation of the palm vein optical system are facilitated; through the arrangement of the first concave transparent surface, the second concav