A New Probe into the System Structure of Library Science

The development and change on the practice of library and realization of people on library along with times.Because established the system of library science in the past,cannot reflect the development and change in the new era,therefore it is necessary to reestablish system of library science.The author on the new change,new realization,new idea and new trend on knowledge development of library science,discussed the necessity,the possibility the basis and the principle of establish new system of library science and takesthe communication the collection knowledgeas the study object of library science,established the new system of library science.