Purpose: Following to the government's announcement of the "Essential healthcare policy package" and its plan to increase medical school admissions by 2,000 beginning in 2025 to address workforce shortages, a healthcare policy conflict occurred, causing significant disruptions in medical services. This study aimed to identify the nurses’ care experiences in the changed healthcare environment, particularly one year after the healthcare policy conflict. Methods: This study used a qualitative approach with content analysis. Data were collected through focus group interviews with 19 nurses from tertiary general hospitals who could provide detailed accounts of their patient care experiences in the changed healthcare environment following the healthcare policy conflict. The main question was, "What changes have occurred in the nursing field since the healthcare policy conflict?" The specific objective was to examine the challenges nurses faced in providing patient care during the healthcare policy conflict and to identify their effects on nursing practice. Results: Five main themes and 17 subthemes were identified. The themes were: (1) changing in the nursing practice environment due to healthcare policy conflict, (2) challenges in the healthcare setting caused by the absence of medical residents, (3) adaptation of the healthcare environment to change, (4) changes resulting from the expansion of tasks and deployment of medical support nursing workforce, and (5) the present and future of the healthcare setting one year after the healthcare policy conflict. Conclusion: This study found that the absence of residents during healthcare policy conflict increased inurses’ medical support tasks and challenges, including communication issues. Over time, the healthcare setting adapted, with faster prescription processes, higher patient satisfaction, and improved quality of care due to the involvement of the medical support nursing workforce. Nursing duties expanded beyond their traditional scope to address care gaps resulting from healthcare policy conflict. Additionally, medical support tasks such as prescriptions and procedures, previously performed in legal gray areas, were shown to be feasible within a formal legal framework. Defining the roles of newly assigned medical support nursing workforce and providing support is necessary. Based on these findings, future research should examine nursing workforce management, task allocation after residents’ return, and nurses’ experiences in both general and specialized units.