Abstract: An interactive instant response broadcast board comprises a microcomputer and a plurality of display broadcast boards and a plurality of detecting elements arranged thereon that detect the movement of objects detected in front of the broadcast boards, and transmits information to the microcomputer. A host server transmits and receives information to and from broadcast boards and extracts the information read from the microcomputer and detected by the detecting elements, and downloads the image messages and programs to at least one broadcast board for displaying. The broadcast board may be used in public place without being connected to a network.