本研究目的在探討醫師和護理人員對專科護理師角色與功能的看法及其相關因素。採橫斷性研究法，研究對象為中部某醫學中心有專科護理師執業單位之基層護理主管、臨床護理人員及醫師。研究工具為自擬量表，量表之Cronbach’s α為 .97，其內容效度之CVI值為 .89，回收有效問卷363份（89.6%）。研究結果發現：⑴醫師及基層護理主管對專科護理師角色與功能看法之評價較高。⑵專科護理師角色與功能中以病人照護能力獲得之認同最高，而角色定位之認同度最低。⑶護理人員之年齡、年資與對專科護理師角色與功能之看法間呈負相關。⑷醫師和護理人員之職稱、教育程度及任職科別之不同會影響其對專科護理師角色與功能之看法（p < .05）。本研究結果可作為專科護理師發展過程及角色與功能了解的重要參考依據。另建議醫院行政體系能持續配合專科護理師政策之推動，讓專科護理師得以發揮其角色與功能，進而提升其專業能力及獲得醫師和護理人員之認同。

The purpose of this study was to investigate physician and nurse views regarding the role and functions of nurse practitioners and related factors. A cross-sectional survey was conducted at a medical center in central Taiwan. The study sample included nursing staffs, nursing administrators, and physicians. A structured questionnaire was developed to collect data, which had a content validity index of .89 and a Cronbach’s α value of .97. A total of 405 questionnaires were distributed, of which 363 valid returns (89.6%) were included in formal analysis work. Results showed that: (1) Physicians and nursing administrators achieved the highest role and function viewpoint scores of all participant subgroups; (2) On average, participants scored highest on patient-care capability and lowest on role identification; (3) There was a negative correlation between the variables of age and nurse seniority and role and function variables; and (4) Professional title, education level, and work unit type all significantly influenced physician and nurse views regarding nurse practictioners (p < .05). Study results may help facilitate better understanding of nurse practitioner development. The authors suggest that hospital administrations work to promote the nurse practitioner system in order to help nurse practitioners develop their role and functions and improve professional competencies, which is essential to raising the opinion nurse practitioners among others in the healthcare sector.