3G router

The utility model discloses a 3G router which comprises a CPU (central processing unit), a switchboard module and a memory module and also comprises a flash memory module and a 3G module that are embedded in an IP Sec encryption core and based on a public key certification system of a U-Key, wherein the switchboard module, the memory module, the flash memory module and the 3G module are respectively in double-way connection with the CPU. The 3G router is provided with the IP Sec VPN and authentication support based on the U-Key, thus being capable of offering safe, fast and reliable VPN solving scheme for a user and being especially applicable to industries with higher safety requirement, such as finance, insurance and the like; and the user can complete a task that can be completed only by a special line before with a cheap 3G network, thus saving a large mount of network construction cost.