Why Supermarket must choose OLAP System? The prevailing system struggles to meet up with the demand? OLAP system has benefits of better than now? In my own position is right. Because the supermarket is the focus on accurate data evaluation to the marketing of goods, OLAP absolutely can meet the needs of the supermarket, the huge benefits include trend analysis, customer loyalty analysis, Perform market analysis. These benefits for future years development of the supermarket have a great help.