An intelligent refrigerator based on the Internet of Things and an application system thereof, relating to the technical field of the Internet of Things, and in particular, to the aspect of intelligent refrigerator system module improvement based on the Internet of Things. The intelligent refrigerator comprises a refrigerator main body and a refrigerator control module which is arranged in the refrigerator main body and used for controlling the operation of the refrigerator main body. The refrigerator main body also comprises a central processing system module, the refrigerator control module being in communication connection with the central processing system module through a UART interface. A touch display module for man-machine interaction, and a network communication module for connecting the Internet network are also connected to the central processing system module. The intelligent refrigerator can realize managing the storage information of foods in a refrigerator in a graphical manner.