The design adopts modular design method, ultraviolet disinfection lamp module and disinfection spray module can be interchangeably installed, composed of disinfection system, to solve the problem of the bibliography damaged by damp disinfection, better complete the disinfection needs in the library. Uv searchlights can be extended to complete the disinfection needs of different locations of the bibliography, disinfection spray can complete the disinfection of the library hall and other work.