The series of new information acquisition methods are spawned with the rapid popularization of mobile devices. The most representative one is the two-dimensional code technology, which is widely used in the field of mobile payment. It implements a new type of communication method, in which two-dimensional code is displayed on the screen and recognized by camera. We introduce an information hiding technology to build invisible two-dimensional code information based on this new mode of communication, so that the users can obtain information while reducing the information perception of adverse effects from the introduction of visible two-dimensional code to the carrier. According to the digital video resources, the proposed algorithm embeds the specific information into the carrier by frequency constraint method, and takes pictures when the camera or mobile phone is played on the video screen. After the video information is obtained, the hidden information is extracted to achieve the effective transmission of the specific information. At the same time, the energy statistics model and error correction mechanism are introduced to ensure the accuracy of the extracted information. A large number of experimental tests show that the algorithm can achieve high accuracy of information extraction within 1-2 m distance.