This study aims to determine the influence of variable brand image, price, promotion, and product quality partially or simultaneously to the purchase decision. Population or sample in this research is consumer of Giant Supermarket of Bekasi. The data collection used in this study was taken by using random sampling. Data collection method used in this research is observation method and questionnaire data, and data type used in this research that is primary data. In addition there are several methods of data analysis in this study is validity test, reliability test, descriptive analysis, multiple linear regression, classical assumption test and hypothesis testing. Based on predetermined criteria of sample data that has been used as much as 200 out of a total of 230 questionnaires. From the test results simultaneously proved that the variable quality of product, price, and quality of service together - affect the consumer purchase decision at Giant Supermarket Bekasi.