Abstract: The service process of satellite information includes the entire loop. The loop begins when the task request is issued from combat unit and ends until the service response. Metagraph can describe the rule of information status transformation in the whole process from satellite download information requisition to the final satellite application products and service generation. A new modeling method of Satellite Application Information Chain（SAIC） based on Metagraph is proposed. The SAIC service path is calculated using the maximum Metapath iterative algorithm based on incidence matrix. The solution idea of the problem of satellite application analysis, modeling, design and evaluation is expanded. The decision support is provided for the whole service process of satellite application.

Key words: Satellite Application Information Chain（SAIC）, Metagraph, maximum Metapath

摘要： 卫星信息的服务过程包含从作战单元发出任务请求直至服务响应的整个环路，Meta图能够全过程描述链路从获取卫星下传信息到最终生成卫星应用产品与服务的信息状态转化规律。提出了基于Meta图的卫星应用信息链建模方法，利用基于关联矩阵的最大Meta路迭代算法求解卫星应用信息链服务路径。拓展了解决卫星应用分析、建模、设计、评价问题的思路，为卫星应用的全过程服务提供决策支持。

关键词: 卫星应用信息链, Meta图, 最大Meta路