According to the two differences of geographical background and historical development in Yian-shuei town, two areas with different career backgrounds are enveloped. Because of being the center in which people carry on trade
along the river side during the Chin dynasty and where people put the agricultural products together, citizens who live in the eight main parts inside the street make their life by doing commerce and industry; however, people who live in the seventeen parts outside the street make their life by doing agriculture, just because they make less progresses than the former.
