The experience economical era has approached, people do not go to restaurants only for eating anymore; on the contrary, they are putting more emphasis on the service quality in the restaurants. Therefore, it is essential to focus on customers’ cognition on the issue of service quality. This study is focused on the consumers of two japanese ramen restaurants in Taipei. The data are obtained from 214 effective convenience samples and use the suit software SPSS for windows to carry on analysis. The research is to explore what kind of the characteristics of consumer will go there and examined the difference service quality(By analysis, there were five service quality factors including tangibles, assurance, empathy, responsiveness, reliability) of importance and satisfaction on consumer of characteristics. Importance-Performance Analysis(IPA)method is used to probe into the service quality of japanese ramen restaurants. The major motivation to incite the consumers is “to dine together with friend” in japanese ramen restaurants. The result shows that interviewers’differences on “characteristics of consumer” have much to do with service quality factors of satisfaction level. Problem finding and solving is one of success factors for Business. Therefore, we offer suggestions to operators of japanese ramen restaurants through IPA:Activities, like promotion and discount activities, need to be improved to approach high consumer satisfaction and repurchase intention.