在現代知識爆炸e化時代裡，「專業」已是存在的必要，而扮演縱貫古今、繼往開來的圖書館，其專業性更不容忽視。究竟專業與非專業間有何差異呢？本文以「圖書館事業」為例，經相關探討後試圖提出若干專業構成要件，透過圖書館員對於專業之自我評估，進而檢測圖書館員對於專業構成條件的認知，由結論分析可得目前圖書館在各項專業條件如：正規教育機構、知識體系、專業性組織、專業資格、專業自主權、立法保障、服務性質導向、共同認知及價值觀、在職進修管道確已達到了專業的標準，彰顯出專業的內涵，可視為專業之屬性。 而未能完全達到專業標準之條件如：專業規範、專業性工作技能區分、人事任用管道、職業類別屬性則應予加強。最後，提出下列幾點建議。強化中國圖書館學會的功能、展現「圖書館法」的效能、圖書館員的生涯規劃、加強專業人員訓練模式，希裨益圖書館事業早日邁向專業化，以取得各界對「圖書館事業」之認同。

　　　　　This study uses "Librarianship" as an example and attempts to recommend several prerequisites of professionalism after investigation of related papers. Through librarian's self-assessment in professionalism, this research examines librarian's recognition of conditions constituting to professionalism. From this analysis it can be concluded that the channels of present professionalism conditions for library such as formal educational programs, knowledge system for professionalism, professional organizations, professional qualifications, professional autonomy, legal protection, library service, common recognition and value perception, and on-job training have already achieved the standard of professionalism. It shows the content of professionalism can be viewed as attributes of professionalism. The conditions that could not completely achieve professional standard such as professional regulations, professional job and skill differentiation, employment channel, and professional types and attributes need further reinforcement. Finally, some recommendations such as reinforcing the functionality of Library association of Republic of China, demonstration of effectiveness of "Library Law", career plan of librarian, and reinforcing training method of professionals are highlighted in the hope to seek the earlier recognition of professionalism in the field of librarianship.