This paper examines the determinants of the reservation wages for marriage by the survey of unmarried women in Japan. Especially, I focus on the effects of the employment status on whether the single women have the reservation wages and on their reservation wages themselves. The estimation results show that women who live with their parents tend to have the reservation wages for marriage. And their income and actual relationship to potential partner significantly affect their reservation wages. However, contrary to the theoretical hypothesis, the reservation wages are significantly influenced both by their present and potential labor supply in the future. It is partly because women such as part-time workers require their potential partner to have higher income as a hedge against their own unstable income. It suggests that we should consider the sum of the couple's expected income because many young couples both participate in the labor market in recent years.