“假设”是科学思维常用的手段之一 ,隶属科学范畴的“历史科学”自然可以使用之。每一历史事实作为过去的存在虽是唯一的客观的 ,但在其生成前并非仅有一种可能性 ,因此“假设”没有转化为事实的可能性不仅是合理的 ,而且也是必要的 ;历史研究中有条件的“假设”并不是虚构“历史”。历史学除了求真功能之外 ,还有借鉴作用 ,从这个角度进行“假设”也有其意义 “Hypothesis” is one of the commonly used means of scientific thinking. The “history science” under the category of science can naturally be used. Although each historical fact is the only one that exists as the past, it is not the only possibility before it is formed. Therefore, the possibility that the hypothesis is not translated into fact is not only reasonable but also necessary. The conditional “assumption” is not a fictional “history.” In addition to the history of truth seeking truth, there are lessons for reference, from this perspective, “hypothesis” also has its significance