Traditional Feng Shui is in use nowadays by architects, environmental designers, landscape architects, landscape ecologists and geographers in their works and applications. Feng Shui is widely accepted in business communities in Asia and even in the US which exposed more and more people to believe in the system, especially business people, merchants, home builders, corporate managers and regular home buyers. Numerous business management theories and models analyzing and explaining how to achieve successful business management and performance are available throughout literature. However, it seems scientific rationality for Feng Shui is neither sufficient nor exclusive as an ideology for business and the application of Feng Shui in business appears to be odd from Western site practitioners of business. Feng Shui, as a variable in working environment, is not commonly found as a key factor leading to better business performance. This study will bridge the gap in literatures on Feng Shui, working environment, mindset/decision-making and business performance. A behavioral science research paradigm is adopted using non-experimental quantitative methodology. The quantitative methodology is based on survey data from a sample of managers and executives of business firms in Hong Kong. Initially from review of literatures and executive interviews, a Feng Shui method is identified which is more scientific and business-related, the combined Form School and the Compass School Flying Star method. This Feng Shui method is applied towards measuring Feng Shui scores of corporate offices. The research framework investigated the effect of Feng Shui of office on a firm’s business performance and the underlying mechanism of such effect. To empirically test the research framework, my research combined the onsite Feng Shui score calculation with 200 survey sampling from responding firms in different fields in Hong Kong. Firstly, the findings of this study indicate that Feng Shui is one of the main factors affecting business performance. Moreover, this research contributes to the extant literature by showing the positive effects of Feng Shui on business performance through the mediating role of managerial mindset/decision-making. These findings also show that Feng Shui of environment can enhance business performance. These results will enable us to propose future strategies of improving business performance that foster use of Feng Shui theory in business management as well as offering insights to enhance entrepreneur’s decision-making. Lastly, this study identifies the Mixture of Form School and Compass School Flying Stars Method as an effective method for Feng Shui. The findings of this empirical studies aim to give better understanding of Feng Shui’s application in business world. This research hopes to find that Feng Shui of working environment can maximize potential and help fulfilment of success to business, and to uncover its potential effect on corporate management’s mindset leading to better business performance.