Laozi was the originator of Taoism, he created numerous great thoughts, he tried to establish such a theory that can include all the things in the universe. Laozi considered everyting abide by the Dao,from the ideology of Dao extends many precious philosophy, for instance:“To know that unchanging rule is to be intelligent”、“To know the harmonious is called the eternal”、“Who is content incurs no humiliation”、“Who knows when to stop risks no vitiation”. Today’s urban-rural integration achieve impressive progress yet cause ecological environmental troubles as well. These troubles exactly go against Laozi’s opinion, analysis of the urban-rural integration through Laozi’s thought can get scientific and reasonable enlightenment