As a strategic choice,entrepreneurial orientation (EO) is a new perspective of entreprise's strategic management in recent years. According to extant literature,some aspects on entrepreneurship orientation,including its concept,formulation,determinants and relationship with other strategic orientations,have been systematically discussed in detail. Based on this,the paper also proposes the point that entrepreneurial orientation is the configuration and advancement of entreprise's inside and outside strategies. At last,the prospect of research and practice is also analysized.