A system and method of an enterprise mobile message are provided. The system includes a database, a server, a push gateway, and a mobile communication device. A cloud is composed of the database, the server and the push gateway. The server delivers a message content in the form of a push notification through the push gateway and an external push host to the mobile communication device corresponding to a member. The server creates an unread list according to a reading record uploaded from the mobile communication device of the member. The server resends the push notification to the members selected from the unread list.