Leukocyte analyzer

The utility model discloses a leukocyte analyzer which comprises a shell, a light source, an optical detection module and an in-out bin mechanism, and an optical detection position is arranged in the shell; the light source is arranged in the shell and located at the optical detection position; the optical detection module is arranged in the shell and is vertically opposite to the light source; the bin entering and exiting mechanism comprises a guide frame, a tray and a driving device, the guide frame is arranged in the shell, the tray is arranged on the guide frame in a sliding mode, and the driving device is used for driving the tray to be switched between the pushing-in position and the moving-out position; when the tray is located at the push-in position, the tray is located in the shell and located between the light source and the optical detection module, and the clamping groove is located on a light path between the light source and the optical detection module; when the tray is located at the moving-o