(As the operator's investment in 3G continues to increase, its business maturity and signal service quality will also continue to increase. The emerging 3G routers have been widely used in many industries by virtue of their powerful and flexible deployment capabilities, low line costs, and continuously enhanced bandwidth, but the accompanying security concerns have never ceased. From the perspective of 3G security mechanism, the use of 3G network in data communication, the principle of 3G router security deployment and the 3G router security deployment plan, this paper elaborates the security solution for developing enterprise data communication based on 3G network.)