(??Abstract: Network system integration is an important part of network engineering implementation. Network system integration mainly includes: understanding user requirements, network requirements analysis, network overall design, network equipment selection and configuration, integrated wiring scheme, network equipment management and so on. ??High-performance network system integration is to add some network technologies on the basis of network system integration, so that the network can better realize the high efficiency, security and stability of the network on the basis of the original performance. In the integrated network system, by adopting some technologies for network equipment, such as: cluster technology, load balancing, equipment redundancy, data backup, etc., the network system can be improved, so that the network communication can achieve non-blocking, non-interruption, safe and stable communication .)