“张钰事件”中张钰所公开的有关证据材料的效力认定问题,可以从证据能力和证据力两个层面来剖析证据能力应予以肯定;证据力的认定则要区分不同的具体情形加以综合判断。“张钰事件”所引发的民事证据效力认定的难题,应当引入权利冲突解决机制下的利益衡量来破解,即以发现真实为基点,同时兼顾社会效果。 Zhang Yu incident Zhang Yu disclosed the validity of the evidence that the problem can be identified from both the evidence and evidence of evidence to prove the power of evidence should be affirmed; the identification of evidence of power is to distinguish between different situations to make a comprehensive assessment. The problems identified by the validity of the civil evidence triggered by the “Zhang Yu incident” should be introduced into the measurement of the interests under the rights conflict resolution mechanism, that is, to find out the truth as the starting point while taking into account the social effects.