Abstract: Firstly, the features of the enterprise network mobile device were analyzed, the contrast analysis with traditional VLAN division was also performed based on the design of the overall structure. Secondly, the strategy that SDN technology was applied into existing network and software was used for control strategy was proposed. Lastly, the flexible optimization management for a large number of mobile devices and mobile application in the enterprise internal and the flexible scheduling of network resources were implemented. The results showed that the performance of enterprise network based on SDN is improved greatly.