The project aims to investigate the semiotic linguistic exploration of @ as an example, as well as to explore its social properties; identity definition, group identity, privacy and other themes. Starting from the encoding and deconstruction of the @ symbol, the project is divided into three major sections: morphology, pronunciation extension; 2. origins; modern social properties, and how @, as a symbol with channel properties, can be used to achieve human connection in a variety of media environments by mimicking the syntax of linguistics to construct and create.