Abstract: 【Purpose/significance】Based on the theory of information ecology, the construction of the information service ecosystem of Smart Academic Library are conducive to solving the service problems faced by Smart Academic Library and providing a better learn⁃ing environment for readers【. Method/process】According to the service status of Smart Academic Library and the theory of information ecology, the information service ecosystem of Smart Academic Library is established, and the causal relationship among various ele⁃ments of the system is analyzed by using system dynamics and concludes the key constituent elements. On this basis, through the Ven⁃sim PLE software simulation verify the importance of the constituent elements【. Result/conclusion】Aiming at the key constituent ele⁃
ments, the paper summarizes the stable development mode of the information service ecosystem of Smart Academic Library, and pro⁃vides new ideas for the improvement of its service mode【. Innovation/limitation】With the help of information ecology theory and system dynamics model, this paper studies the formation and development of the information service ecosystem of Smart Academic Library,but the operating mechanism of the system has not been further studied.