[Purpose/significance] Today's world is in the midst of great changes that have not been seen in a century, and China is in the best period of development since modern times. Under the trend of the new era, the construction and development of Library Science in China needs to keep the original intention, clear position and clear direction. [Method/process] From the perspective of value judgment, this paper clarified and differentiated the needs, views and hopes of three different positions of Library Science freshmen, library science teachers and librarianship, reviewed the original intention, development process and fundamental tasks of library science discipline construction in China, and probed into the development direction of Library Science Subject Construction of China in the new era. [Result/conclusion] The fundamental task of librarianship is to meet the needs of national cultural development. The development of library science can not take the European and American model as reference, nor can it aim at meeting the wishes of examinees, teachers and the industry. Instead, it should take contribute to the development of national cultural as the important task, taking root in China, bolstering our Four-sphere Confidence, and staying on the path of Chinese characteristics, and cultivate professional talents and future builders of cultural undertakings for the country. Teachers are the practitioners of subject construction and the leaders of students to establish correct value judgment. They must keep their original intention and place importance on fostering virtue in education. Students, teachers and the librarianship industry should work together to protect the Librarianship and Library Science education, so as to provide positive energy for the prosperity of China's library cause.