The purpose of this research is to analyse and design purchase and account payable system at PT. Fajar Surya Utama. The purpose is especially to explore the advanteges and disadvantages of running purchase and acount payable system at the company. The methodology used in this research are data collection method (Survey, Interview, Spread out, questioner, and literature study), analysis method based on object oriented analysis,and design using UML, and design method. The research is expected to provide and produce purchase and account payable system for PT> Fajar Surya Utama which can create purchase and account payable reports automaticallly and periodically in regards to the timing of buying thing and Paying the debt. Keyword: Analysis, Designe, Purchase, Account Payable