Interactive projection book system

The invention discloses an interactive projection book system, and relates to the technical field of man-machine interaction. The objective of the invention is to solve the problems of poor page projection expansibility and poor page number identification stability of an existing projection book system. The system comprises a projection book, a projection control module, a projector and a cloud platform. The projection book is used for displaying to-be-projected contents; the cloud platform is used for storing contents recorded in each page of the projection book according to the page number of the projection book; the projection control module is used for acquiring the current page number of the projection book, downloading the content recorded in the current page number from the cloud platform, and sending the content recorded in the current page number to the projector; the projector is used for receiving and displaying the content recorded in the current page number. The method and the device are used for