The air conditioning in the library of Hunan Business Vocational and Technical College is controlled by central air conditioning, and the intelligent system automatically switches on and off according to the outdoor temperature. The air conditioning in the library of Hunan Business Vocational and Technical College does not need to be turned on manually, but is automatically turned on and off by the central air conditioning control intelligent system according to the outdoor temperature. Because of the large library space, modern libraries adopt intelligent large-scale central air-conditioning control system, which is maintained by special personnel. Usually, readers are not allowed to manually operate the air-conditioning switch. If there are special circumstances, such as it is too cold indoors, you can report it to the staff.