Abstract: Through long-term accumulation and refinement of common sense,the Chinese ancientshave formed a legal concept of "being accordant with the rhythm of nature" with Chinese characteristics and constructed a legal system in accordance with the law of time and space in river basin governance.Although the manifestations of river basin governance are different in ancient and modern times due to historical traditions,legal culture,natural characteristics and other factors,the conflict of interests between the development and utilization of river basin water resources and the protection of river basin ecology remain the same.The legal system of "integrated" ecological governance in ancient river basins is of great significance for improving the legal system of modern river basin ecological governance and its legal effectiveness as well.

Key words: river basingovernance, ecological governance, in accordance with the rhythm of nature