This article provides an overview of emergency desktop exercise under the two conditions of the information and quasi information, and analyzes the realistic function and limitation of the emergency desktop exercise in quasi information. It discusses improvement ideas of emergency desktop exercise design in the quasi information mainly from these aspects of the positioning of the overall design, drills, drill resources etc.%本文概述了信息化和准信息化两种条件下的对应急桌面演练，分析准信息化的应急桌面演练的现实作用及其局限性。重点从应急桌面演练的总体设计定位、演练信息、演练资源的等方面，探讨了准信息化条件下应急桌面演练设计的改进提高思路。
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