This research was conducted to: 1) analyze the contribution of female worker income to household income, and 2) analyze the factors that influence the female worker income of plantation female workers at P.T. Agro Muko (Mukomuko Estate). The number of female workers at P.T. Agro Muko (Mukomuko Estate) was 297. Therefore, by using the Slovin formula, the counted number respondents was 75. The contribution of female worker’s income to household income was counted with the percentage of female worker’s income contribution to the total of household income. Meanwhile, the factors that influenced to the income of female worker was analyzed using multiple linear regression model. The results indicate that the average income of female worker is Rp 1,481,680/month with an average contribution of 55.17% to household income. Female worker ages and husband’s income had negative effect on the female worker income, while formal education, number of family dependents, and working experience had positive effect. Other family member’s income had no effect.