Introduction: The primary reason that compels working mothers to decrease their ability to continue to breastfeeding successfully is their return to work. Attempts to continue breastfeeding at work encounters several difficulties. This study aims to provide an overview of the workplace environment and how facilities at the workplace affect breastfeeding in Indonesia. Methods: We used a qualitative approach to provide a detailed picture of the influence of workplace support for working mothers to perform breastfeeding. We enrolled working mothers (n=18) in Jakarta, as participants and obtained the following information from them: parity, type of family and type of work. Results: The findings provided the general overview of the workplace environment and identified three factors that affected breastfeeding: seeking information during pregnancy, expression of breast milk at office facilities and the problem faced by working mothers. Conclusion: Although the breastfeeding performance of most working mothers in this study comprised exclusive breastfeeding, some fed their infants with formula milk. This study suggests that working mothers who continue to breastfeed after returning to work need the support of their employers, co-workers and others in the workplace to ensure the provision of health facilities and the protection and dissemination the rights of breastfeeding working mothers that might lead them to discontinue their breastfeeding practice.