Water has become a vital element in studying heritages, since researchers has realized that heritages are not only about sites per se, but also include multiple elements that reflect human social and cultural development along historical evolution, and water is one of the most important sector to study. To study authenticity of water, it is necessary to take interactions between human and water into consideration, and notice different interactions would result in different discussion on further water management and preservation, for water systems have been changed and reformed by human to adapt to environment and sustain future generations. In this case, the author would like to discuss further water management and preservation based on different interactions between human, water and sites. The examples of heritages along Silk Roads would be provided to illustrate the author's point that further practical approaches on water management and preservation should base on the relationship among human, water and sites.