The number of women starting and owning their own businesses has grown dramatically over the past decade. As a result, women entrepreneurship also has been a new and heatedly- researched area. The research theme has expanded from individual characteristics and motivations in early stage to resource acquiring, entrepreneurship management, performance, social network and family-work conflict. In this article, the past trend of foreign research on women entrepreneurship are reviewed and divided into three periods: emerging research, laying the groundwork, and developing research. Then, current research is organized from personal unit, business unit and environment. Finally, future possible research directions are also discussed.