在对水科学、人水关系学分析的基础上，从水科学的10个分支中的人水关系研究出发，论述人水关系学研究是水科学的核心与纽带这一论断。同时，针对跨流域调水工程论证、大江大河干流水利枢纽建设、洪涝与干旱灾害防治、跨界河流分水4个焦点问题，基于人水关系学视角，探讨这4个问题存在的误区及解决途径，为类似复杂问题的解决提供一种新思路。

Based on the brief introduction of water science and human-water relationship discipline,the conclusion that the research of humanwater relationship is the core and nexus of water science was put forward,the conclusion was discussed from the case studies of human-water relationship in 10 branches of water science.In view of the four focus issues of the demonstration of trans-basin water transfer project,the construction of water conservancy projects on major rivers,the prevention and control of floods and droughts,and the water distribution of trans-boundary rivers,the misunderstandings and solutions of the above four focus issues are expounded from the perspective of human-water relationship research,which can provide a new discipline idea for solving these complex issues.