This paper is assessing and developing the service quality, customer's satisfaction and loyalty of shopping mall in Taichung. A total of 500 questionnaires were distributed for shopping mall customers and 380 were returned (resulting 76 percentage of response rate). Independent Sample T Test, One-Way Analysis of Variance, and Regression Analysis were used for data analysis. From the study, the researcher got the conclusion: first, there were partial significant differences while the customer had different backgrounds; second, that service quality consisting of five dimensions has appropriate reliability and each dimensions has the significant prediction to customer loyalty; last, empirical data also showed that customer satisfaction has the significant prediction to customer loyalty. Theoretical and practical suggestions are also provided to the shopping mall.