This study aims to analyze the Influence of the Quality of Perceptions, Brand Image, Price Perception and Promotion on Purchasing Decision of OPPO smartphone products. The object of this research is the OPPO smartphone while the subject in this research is the consumers who have ever bought and used the OPPO smartphone product. This study used 105 selected samples using Non Probability Sampling Technique through Purposive Sampling method with criterion of Yogyakarta society who had bought and used OPPO smartphone product. Analyzer used is Multiple Regression Test which operated using SPSS 22.0 program. Based on the analysis that has been done, the results obtained that the quality of perceptions, brand image, price perceptions and promotions together have a positive and significant impact on purchasing decisions, product quality has a positive and significant impact on purchasing decisions, brand image has a positive and significant impact on purchasing decisions , price perceptions have a positive and significant impact on purchasing decisions, and promotion has a positive and significant effect on purchasing decisions.