网格 Portal 即网格门户，利用主流的Web 技术提供Web界面，方便用户使用并提供网格管理的功能和服务。新一代基于Portlet虚拟组件的网格Portal显著降低了网格Portal的开发难度和成本，实现了不同Portal组件之间的高度兼容和互换，已经成为了新一代网格 Portal 的主流技术。本文在介绍基于Portlet的网格Portal的发展情况和设计技术的基础上，探讨了羊八井宇宙线观测实验的网格Portal 的功能与设计。

As a web-based application，Grid Portal makes end-users to access the functions and services of Grid easier. The new generation of the Grid Portal bases on Portlet. The Portlet is visual modules which reduce the difficulty and the cost of the Grid Portal development significantly. Moreover, Portlet makes different portals highly compatible and easy migrating. Now the Portlet-based Portals became the mainstream of the new generation of Grid Portal. In this paper the development and the framework design of the Portlet-based Portals were introduced. Then the functions and design of the Grid portal in the YangBaJing cosmic ray observation experiment were discussed.