The simulation grid is a distributed simulation platform built through grid technology. On the platform the distributed simulation applications can be executed by utilizing the powerful sharing resource. The research of the simulation grid prototype system is the basis of solving the key technology to build simulation grid. SGE is a tool to construct the local and cluster grids. This paper presents a recent research of building SGE-based distributed simulation grid prototype system. Specifically, its framework provides the dual channels of communication. One channel takes charge of communicating among components of the grid, and the other one takes among HLA federates. In particular, the grid supports three modes of HLA scheduling tasks, which are differentiated according to (1) processes, (2) federates and (3) federations. Results of this study demonstrate the technical feasibility of constructing SGE-based simulation grid, and simply build the prototype system to test the performance of three scheduling task modes.