Fixing device for living small animal detection

The utility model discloses a fixing device for living small animal detection, and the device comprises a chassis which is used for fixing a movable small animal; the bracket assembly is arranged on the chassis; the suction cup assembly is arranged at the end of the support assembly and located above the base plate, the suction cup assembly comprises a suction cup and a slide, an adsorption hole and a first air channel communicated with the adsorption hole are formed in the suction cup, and the first air channel is connected with negative pressure equipment; the slide is arranged at the upper end of the adsorption hole and seals the upper end of the adsorption hole; the lower ends of the adsorption holes are used for adsorbing the submaxillary gland of the small living animal and enabling the submaxillary gland to be attached to the lower surface of the slide; and the microscope is arranged above the slide. According to the method and the device, the problems that when the submaxillary gland of the living sma