during the past decades,fast fashion has emerged significantly in the apparel industry. Originated in the U.S. in the 1980 ,fast fashion refers to designs that move swiftly form runway to stores to capture the latest trends. with the emergence of this sector worldwide ,an increasing number of researches have emphasized on aspects of management and marketing rather than evaluated the impacts of internal and external factors on general performances. taking a multidimensional perspective, our research provides an in-depth analysis about performances of major fast fashion retailers. To achieve this goal,we evaluate the fast fashion Quadrangle (FFQ),which includes fast retailing, inc. ltd, Gap inc., Hennes Mauritz (H&M) and inditex Group (ZARA)