The term Mae Wong is the name of a river in Mae Wong National Park River, which is the mae Pern with a winding winding lead flow and Mae Wong District Branch established on April 1, 1992, according to the Interior Ministry. March 13, 1992 by separated from LAT Yao district, and later a Royal Decree, except as district. On October 11, 1997 by dividing Government as District 4.