This paper sorted out the influence factors from three-level environment (macro-level, meso-level, and micro-level) that have impact on women entrepreneurs' motivation to go into entrepreneurship. Questionnaire survey was used to study women entrepreneurs in the Greater Bay Area about their motivations and to what extent that factors three-level environments would encourage/discourage them to start a business. As to focus on the distinct characteristics of the female entrepreneurs in this research, the sample excluded male respondents and those whose household or permanent resident were not in Greater Bay Area. Findings of previous studies on women entrepreneurs are also employed for comparisons and contrasts. Data collected has been analyzed by IBM SPSS, pointing out that, self-actualization is the core entrepreneurial motivation of women in this region, and gender inequality, government interference and technology advancement significantly have correlation with women entrepreneurial motivation. This research products significant implications for female individuals, NGOs and government to take relevant measures to guide and support women entrepreneurship.