Abstract: In China, librarians have no ＂professionalization＂ and the research on ＂librarian professionalization＂ is irrational. However, China libraries and librarians , in fact, exist the professionalization of librarians that is a material source of librarians＂ survival, is a spiritual foundation stone of librarians＂ kindness and pleasing to the eye, is a bay of librarians＇ daily professional activites. Business outsoureing is improper to librarians taking a professional risk of investment and spending, the research on marginalization of librarians is objective and deprofcssionalization of librarians is unrealistic . Facing to marginalization of librarians, librarians ought to propel librarians ＂ professionalization＂ and let the research on deprofessionalization of librarians to lag behind.

Key words: library; librarian; professionalization of librarians; deprofessionalization of librarians; marginalization of librarians