The ideal library automation should be worked under a perfect system with an overallplanning so as to fulfill its real functions and really obtain benefits brought about by theinformation science technology. Acquisition is a pioneer work in the library operation; its goodmanagement will be helpful to the smooth operation of cataloging, collection, circulation, etc.and will even be favorable to the policy-making on the part of the library administration. The automation system of the National Chengchi University libraries has been establishedon the basis of the integrated library automation system developed by the InnovativeInterfaces, Inc. of the United States; it is a turnkey system, this article aims at describing theautomation process in its acquistition operation, including its pre- operation, actualimplementation, maintenance, etc.