The purpose of this study is to conduct a study of Total Quality Management (TQM) and Business Excellence Models (BEMs). TQM and BEM were two of the most popular management approaches used by enterprises in 1980-2000. However, they seem to have lost their attractiveness in the last decade. In order to investigate the reasons, first of all, a review of the previous literature on TQM and BEM is conducted in this study to diagnose their current status, deficiencies and limitations. In light of the research finding from the first part of this study, a new overall BEM is then developed in response to the deficiencies and the limitations. The new model proposed in this study has a three-dimensional design which includes a ‘BEM’, ‘management tools/techniques’ and ‘organizational culture/characteristics’. The three-dimensional design indicates the integration of a BEM for the functions of guidance/assessment with choosing appropriate management tools and techniques for the functions of planning/operation/improvement and cultivating the right organizational culture/characteristics for the focus of people-centered philosophy in an organization. Finally a case study is conducted in this dissertation to demonstrate how the proposed new overall BEM may work in practical adaptation of existing BEM.