An instant messaging was a communicate software for the company's internal staff in specially. The server side of the software is based on the SSH framework structure, that implement data addition, deletions, corrections and checks; The client side was based on the SSH framework structure of the hybrid development mode, The client was design of login, registration, announcement, online chat, user information management, message management module and other functions. It was mainly uses HTML5 and JavaScript to realize the interface. Java to achieve logical business and other functions. After the server starts, The client APP operates on the database by accessing the server. The system meets the daily office needs of enterprise management personnel.