无论是在中学还是大学物理教学中学生对于液体表面张力的微观机制理解都存在困难，目前实验上也难以对表面微观结构进行观测，使得液体表面张力微观机制的揭示一直以来都是科学领域的一个难题.为了更加深入的理解和探究这个科学问题，本文基于类比固体表面重构的基本原理并通过动力学模拟方法进行论证，探讨了液体表面张力来源于液体表面层分子间距变大，分子之间表现为引力作用，因此表面上存在与液面相切的张力作用.

 Whether in high school or university physics education，students often find it difficult to understand the microscopic mechanism of liquid surface tension. Currently，it is also challenging to observe the microscopic structure of the surface experimentally，making the revelation of the microscopic mechanism of liquid surface tension a persistent scientific problem. To gain a deeper understanding and exploration of this scientific issue，based on the basic principles analogous to solid surface reconstruction and through dynamic simulation methods，we explore that liquid surface tension arises from the increased intermolecular distances in the liquid surface layer，with molecules exhibiting attractive forces between each other. Therefore，there exists a tangential tension on the surface.