The acquisition of books is an important part of the library operations. It has beenbrought about with the initation of the libraries and thus has had its existance and historyfor a very long period of time with the availability of more libraries book acquisitions havebecome very essential. However, owing to the slow development of the acquisition theoriesand the simplicity of the operations the abundant experience of the practical acquisitions havenot yet been shaped as profound theories. Therefore, the essay aims to make the following suggestions about the formation of thedevelopment of library acquisition theories: 1.the necessity of the formation and the development of library acquisitions theories. 2. the implementation of library acquisitions as the foundation and sources of the formation and development of acquisitions theories. 3.ths development, state-of-art and evaluation of acquisitions theories. 4.the research scope, contens and system structure of library acquisitions theories. 5.the relationship between library acquisitions and other relevant fields of study and the research methods. 6.opinions on the emphasis and development of library acquisitions theories.