The invention provides a photovoltaic intelligent book cart and a working method; the photovoltaic intelligent book cart comprises a book cart body, a navigator and a storage battery, and the storagebattery is fixed at the bottom of the book cart body and used for supplying power to the navigator; the navigator is fixedly arranged on the book cart body and used for searching books and locating the searched books, carrying out route and/or voice navigation to realize book location navigation, such that navigation can be carried out in the forms of a route map and voice, and readers can rapidlylocate and search the books. The book cart further comprises a data acquisition module and a processor fixedly arranged on the book cart. The data acquisition module comprises a plurality of temperature sensors and humidity sensors which are arranged indoors, and is used for acquiring indoor temperature and humidity data in real time and uploading the indoor temperature and humidity data to the processor; the processor is used for dynamically adjusting a temperature adjusting device and a dehumidifying device according to the acquired temperature and humidity data to realize real-time adjustment of temperature and humidity in a library, so that readers and workers can enjoy a comfortable environment; the structure of the book cart is simple, and the practicability is high.