Purpose: The purpose of current study was to explore the positive outcomes of advanced practice nurse who have experienced the roles in their clinical settings. Methods: This study adopted a qualitative research design based on conventional content analysis. Participants were 16 nurse practitioners have been worked at hospitals or community centers. Data were collected via focus group interviews and analyzed using thematic analysis method. Results: Patients' aspect outcomes were "client-centered care in providing continuity", "providing trust based on expertise", "promoting skilled intervention in patient recovering", "blocking the negative consequences", "quality improvement: nursing becoming tighter", "providing total care for cases that require intensive care", "improving patients outcomes by total management", "increasing confidence in evidence-based professional nursing", "rising the satisfaction by cost-effective services", "providing skilled professional practice", and "providing comprehensive care related to covering various aspects". Other themes elicited also included "promoting efficacy by inter-related health professions supervising", "the expansion of specialized practice areas increase business efficiency", "formation of outside customers due to increasing the satisfaction with skilled nursing care", "filling in the emptying spaces of doctors by practicing reliable role to bridge", "attracting external customers through successful management of subjects", "increasing staff's satisfaction on the role to make a bridge between inside and outside doctors", "24 hours medical expertise of professional staff ready secured", and "low cost, same results, that is, cost-effective" in reference to health care resources aspect. Conclusion: These findings suggested that advanced practice nurses perceived various positive outcomes and provided basic data for outcome indicators of advanced practice nurses' role.