Currently, in today's modern world, the development of online advertisement has significant growth for business which plays a vital role in the consumer buying decision. The rapid development of online channel and the amount of internet users are the reason online advertisement is being important. The benefits of online advertising such as the ability to deliver advertising messages to customers via the internet and mobile devices without regard for geographic boundaries or time constraints. This study explores the consumers purchasing decision in terms of online advertisement by examining the variables of online advertisement content, online advertisement strategy and consumer buying behavior. This research is utilizing primary data collected via online forms which is google form and analyzed it using SPSS software. The research specifies the respondents profile at any ages who live around Jakarta Greater Area and a consumer who use online platforms. This research was able to conclude from 151 valid respondents.