Background: The increasing numbers of women in the workforce is an inevitable trend in China. More and more employed women stop breastfeeding because of working stressors. However, there are also many mothers overcoming many challenges to insist on breastfeeding after returning to work. Their individual experience of breastfeeding may provide a new insight to promote and support breastfeeding on employed mothers. This study sought to understand mothers’ experience with insisting on breastfeeding after returning to work based on Kumpfer’s Resilience Framework in Chinese context. Methods: This qualitative study was designed with semi-structured interviews. Purposive sampling and snowball sampling was employed to recruit 13 full-time working mothers with a stable job in the public sector who continued to breastfeed for 1 month or more after returning to work in Haikou, Hainan Province, China. Interviews were conducted from January to March 2020 to capture participants’ experiences of breastfeed after returning to work. Grounded theory and Kumpfer’s Resilience Framework were used to analyze data via a systematic and iterative process.Results: Employed mothers built resilience while continuing to breastfeed after returning to work. The core concept was "dynamic interaction". Other categories were the background and explanation of this phenomenon. For working mothers who continued to breastfeed, resilience involved "dynamic interaction", which started from "experiencing stressors" and "obtaining support", two factors that interacted with the individual to "stimulate resilience", which led to “behavioral resilience” during the ongoing dynamic interaction between resilience and environmental factors and ultimately led to three different "weaning outcomes", including natural weaning, active weaning, and forced weaning. Conclusions: This study identified the framework of resilience in mothers who insisted on breastfeeding after returning to work based on Kumpfer’s Resilience Framework. It may help midwives assess stressors and supports for employed mothers to continue to breastfeed after returning to work, determine the process by which resilience traits are stimulated in employed mothers, identify different phases of behavioral resilience, provide targeted interventions, and then promote favorable weaning outcomes.