In Taiwan, the term “Technological and Vocational Education” comprises the higher education institutes of university of technology, college of technology and junior college. Libraries in colleges/universities of technology are set up by “The Regulations for Operation and Constitution of University Libraries” and “The Regulations for Operation and Constitution of Junior College Libraries” Yet, the appointment of college/university librarians is diverse in the individual college/university. This study aims to examine the role of librarians on the base of institutional characters, scales of the institutes, and the hierarchy of library in order to identify the leadership styles of college/university librarians and understand its relationship with the factors including the implement a learning center, improving services and upgrading professions. 88 out of 94 effective questionnaires are returned, with 93.61% return rate. Statistics analytics of cross analyze, Chi-square Test, t Test, independent variable are applied. This study discovers not only the personal leadership characters as gender, age, education, experience, and profession but also institutional characters as state-owned or private, and the hierarchy of library are indistinguishable while the economic scale and institutional goals on the development of library are distinguishable and the leadership styles and the role of librarians have extremely distinguishable impact on the development of libraries in colleges/universities of technology. This findings suggest: (1) allocate library fund for resources only, (2) college/university librarians’ retraining in duty, (3) value the role of college/university librarians, and (4) promote library-industry educational collaboration. Suggestions for further studies shall focus on research targets, continuing search, research methods, and relative research to upgrade to the overall status of libraries.