Cytological and bacterial staining and preparation machine

The utility model discloses a cytological and bacterial staining and preparation machine for laboratory medicine and biological research. The machine comprises a machine body, wherein a cup holder (6) is arranged in the machine body; concave holes matched with filtering sandwich cups are formed on the cup holder (6); holes are formed at the bottoms of the concave holes of the cup holder (6); the filtering sandwich cups placed in the concave holes of the cup holder (6) are connected with a waste liquor recovery pipe (8) through the holes; valves (7) are mounted on the waste liquor recovery pipe (8) connected with an air exhaust device (10); staining agent filling needles (3) are arranged above the cup holder (6) in corresponding positions and connected with staining agent storage boxes (12) through staining agent delivery hoses (1); and constant delivery pumps (2) are mounted on the staining agent delivery hoses (1). The cytological and bacterial staining and preparation machine can achieve smearing, staining and preparation of multiple cell or bacteria samples in one step, can complete various staining, and has the advantages of simplicity, low manufacturing cost and convenience in use.