This paper introduced two situations of trace evidence position at fire scene,analyzed in detail the factors caused trace evidence posi-tion change,mainly discussed the restoration role of trace evidence position at fire scene,had very important significance for comprehensive cor-rectly reproduced the fire scene.%介绍了火灾现场中痕迹物证位置的两种情况，详细分析了导致痕迹物证位置变动的因素，主要对痕迹物证位置在火灾现场复原中的作用进行了论述，对于全面正确地再现火灾现场具有非常重要的意义。
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