This research, public no.11 parking facility of Tainan City has the most parking spaces. It is located in the center of the city, with shopping street, many stores and crowed people; however the usage of parking has not been well realized year by year. This case has become a bad case of city built parking. Marketing has failed to succeed at bring use, even though the parking rate is so low. Using Parasuraman, Zeithmal and Berry’s ideas to make the questionnaires, we find out that motorist felt most satisfy of the parking service is reliable; we also find out the most unsatisfactory is the reaction.