【摘要】The utility model discloses a fixing device is handled to medical experiment mouse, it includes: fixed screen panel (10), it encloses by arc wire side (11) and from its marginal downwardly extending protruding portion (12), forms the space that suits with the mouse size, and fixed plate (20), its edge is equipped with ascending arch (21), protruding (21) with protruding portion (12) cooperation, fixed screen panel (10) with the front end of fixed plate (20) is rotatably connected. The utility model discloses function practicality and simple structure, the production of being convenient for, low cost, easily marketing, just the utility model discloses all materials can all carry out germicidal treatment such as cleaning and disinfecting, convenient used repeatedly many times.