Abstract: Provided is a tabletop interface system. A tabletop input device diffuses an infrared light emitted based on at least one touch input from a user. A tabletop output device allows the diffused infrared light to pass therethrough to display content information corresponding to at least one touch point. The tabletop recognition device recognizes the at least one touch point by generating a touch image data based on the infrared light passing through the tabletop output device and generates touch point information by using the touch image data. The content server transmits the content information, which corresponds to the touch point information received from the tabletop recognition device, to at least one content client application.