网格技术是一个正在迅猛发展的新技术，所谓网格就是利用网络把地理上广泛分布的各种资源连成一个具有一定逻辑的虚拟环境，虚拟组织最终实现在这个虚拟环境下进行资源共享和协同工作，本文首先从网格的起源谈起，对网格的含义和特点进行了阐述，分析了网格的五层沙漏模型体系结构,同时介绍了被称为下一代网格体系结构的开放网格服务架构OGSA，然后深入讨论了网格技术的各种应用，最后对网格技术的发展作了展望。-Grid is a fast-developing new technologies, The so-called mesh network is used extensively on geographical distribution of various resources together into a certain logic to the virtual environment, Virtual Organization in the eventual realization of the virtual environment for the sharing of resources and synergies, This paper from the grid about the origin of the grid characteristics and the meaning of them. Analysis of the Grid Layered Architecture Model, was introduced at the same time as the next generation Grid Architecture Open Grid Services Architecture OGSA. followed by an in-depth discussion of various applications of grid, the grid for the final development prospects.