In order to manage water resources efficiently, in 2000 the Cabinet established a framework. "National Water Vision" with approval on 25 July 2000 and from the National Water Vision has led to the determination “National Water Policy,” which the Cabinet approved on October 31, 2000, under the concept that is consistent with the 1997 Constitution of the Kingdom of Thailand, an integrated water management approach that focuses on coordination and development and management of water resources together with other related resources By taking into account environmental impacts as important To lead to the highest economic and social returns.

The results of the civil service reform at the end of 2002 have led to the establishment of Department of Water Resources As a government agency with the main mission of comprehensive water resources management By making policy recommendations Make a master plan research study develop conservation and restore water sources as well as promoting and supporting public participation in the form of a watershed sub-committee To be consistent with government policy To promote the role of the people In participating in the work of the government sector Starting from thinking presenting opinions action including monitoring and evaluation To create acceptance of government project plans and activities. that can carry out local development efficiently and sustainably

Later, the Head of the National Council for Peace and Order issued Order No. 46/2017, issued on 25 October 2017, and Order No. 2/2018, issued on 22 January 2018, establishing the National Water Resources Office. To be the main policy agency for managing the country's water resources. By cutting the mission and manpower of the Department of Water Resources in the areas of recommending water resources policies and plans for the country as a whole, and creating action plans for water resource management of the country. Water resource management at the cross-basin level Cooperation with foreign countries and international organizations in water resource management in water resource management. including monitoring and evaluation and performing duties as secretary of the National Water Resources Board for the National Water Resources Office