“何武断剑”一案是我国古代遗嘱纠纷的经典案例。文章介绍了“何武断剑”案发生的历史背景,该案案情及判决,同时通过对该案判决的分析,探求何武是如何发现遗嘱人真意的,进而以此说明我国当今遗嘱解释规则问题。文章认为,遗嘱解释应当坚持形式与解释区别说;坚持遗嘱外证据的有限适用规则;遗嘱解释应坚持以文义解释优先。 “He Wu broken sword ” case is a classic case of ancient Chinese wills dispute. This article introduces the historical background of the occurrence of the case of “He Wusi sword”, the circumstances of the case and the judgments. At the same time, through the analysis of the judgment of the case, it explores how He Wu discovered the true will of the testator, and then explained the present testament interpretation of our country Rule problem. The article holds that the interpretation of wills should adhere to the difference between form and explanation, insist on the limited application rules of the evidence of wills, and the interpretation of wills should adhere to the priority of textual explanation.