Mouse fixator

The utility model provides a mouse fixator. The mouse fixator comprises a fixing plate, a head fixing base, two body stop blocks, a bandage and a hook, wherein the head fixing base is arranged on the fixing plate and provided with a groove matched with the head of a mouse, a through hole is formed in the top of the groove, the two body stop blocks are symmetrically arranged on the fixing plate by using the axis of the groove as the center line, the bandage is used for winding the two body stop blocks, the fixing plate and the mouse located between the two body stop blocks together, and the hook is arranged at the upper end of the fixing plate. Due to the fact that the mouse fixator is provided with the head fixing base, the fixing plate, the body stop blocks and the bandage, the head and the body of the mouse can be fixed at the same time, and free movement of the mouse can be prevented. The mouse fixator can be used for a mouse radiant exposure device, so that a radiant exposure experiment is facilitated, and the radiant exposure experiment efficiency and quality are improved.