Fixing device for rat operation

The utility model belongs to equipment for animal scientific experiments and researches, and particularly relates to a fixing device for a rat operation. The edge of a fixing plate is provided with a plurality of threaded holes. The side face of the fixing plate is provided with a circle of threaded holes. Multiple column sticks are connected with the threaded holes in the surface of the fixing plate through threads. Multiple screws are connected with the threaded holes in the side face of the fixing plate through threads. The fixing device is used specially for fixing an anesthetized rat, the fixing position can be adjusted at will according to the body type of the rat, the operation of the fixing device is quite simple and convenient, and sufficient parts of the rat can be exposed.