Cloud office platform

The invention provides a cloud office platform which comprises a cloud terminal, cloud office middleware and a cloud host. The cloud terminal is used for sending the login information of a user to the cloud office middleware, is connected with the cloud host according to a remote display server address sent by the cloud host, and displays an office desktop system. The cloud office middleware is used for verifying whether a user has an access permission according to the user's login information sent by the cloud terminal, selects the cloud host according to the user type if the access permission of the user is verified, queries a user data hard disk address corresponding to the user, and sends the user data hard disk address corresponding to the user to the cloud host. The cloud host is used for determining whether a virtual machine is started according to the user type, mounts a hard disk corresponding to the user data hard disk address on the virtual machine, and sends a remote display server address corresponding to the virtual machine to the cloud terminal. According to the cloud office platform provided by the invention, the maintenance difficulty and the maintenance cost of the office desktop system of a railway ticket system are reduced.