This paper uses geographic information system (GIS) to demonstrate the business change of corridor before and after MRT lines opening in Kaohsiung city. Retail and beverage business data in the period of 2007-2010 for the villages in the corridor area was employed. Our findings with spatial analysis are not similar to those of the original study. Business change associated with MRT during 2007-2008 (before MRT lines opening) was not observed. However, it is observable but not significant during 2008-2010 (after MRT lines opening). In addition, most villages associated with larger increments were observed in Zuoying district.