Information filtering technique has developed quickly in the European countries and America, where the IT technique start more early, and this technique has also developed in our country but it seldom aims at its application in the educational net.

• 信息过滤技术在欧美等IT技术起步比较早的国家发展较快，在我国也有一定深度的研究，但信息过滤技术针对教育网的应用并不常见。 信息过滤技术将极大的增强校园网的信息安全，净化校园的网络环境，在最大程度上杜绝网络安全隐患。