Abstract: As the scale of IP network expands continuously,the heterogeneous is much higher than ever before.And the network bandwidth increase in double makes the network structures more and more complicated. In order to provide qualified and guaranteed network service in the complicated environment, the sFlow technology had been put into use to monitor network flow in the high speed campus network. It reduced the traffic data which collected and had simultaneously guaranteed the data may accurately use to carry on the network traffic monitor. This article firstly analysis current capacity gathering establishment,and secondly carries out overall analysis accurately for network traffic. Last but not least, on the basis of actual according to actual demand with two sFlow system organization plan，it discusses about how to configure sFlow with actual application, and put forward the whole network traffic monitor base on sFlow technology.