Animal experiment fixing device

The utility model relates to the technical field of medicine, in particular to an animal experiment fixing device which comprises a fixing plate, a support and a restraint strap, an overturning assembly comprises two stand columns, a sliding rail, a sliding block, an air cylinder, a push rod, a first motor, a rotating shaft, a sliding piece, a sliding strip, a containing plate and two fixing blocks, the air cylinder is started, the air cylinder is pushed out or withdrawn, and the push rod is driven to be pushed out or withdrawn. When the first motor rotates anticlockwise or clockwise, the sliding block is pushed to slide on the sliding rail, meanwhile, the first motor rotates slowly to drive the sliding piece to rotate, when the sliding piece rotates, the sliding strip is driven to rotate, the placing plate is driven to incline on the fixed plate, and the sliding strip slides in the sliding piece while rotating; and the placing plate can be driven to turn left and right, so that the body position of the anima