Facebook is a social network on the internet. There are a lot of popularity in many countries, Facebook is useful to communicate easily and quickly. Building a social network in a matter of doing business, and also share the message or information to the public quickly. Makes it easy to access information. But vice versa, adding friends, there may be cause for fraud or fraudulent lurk in the process. The result is often the case Azkaban purposes of this Application and updating the photos or text. May lead some readers to believe or understand the causes of conflicts and problems later on and. Make others see the three of us, whether it is a place where the name does not matter what you do, where people are able to reach us. As a result, many of the security of the country, so make Facebook Application is allowed in some countries. For the 200 respondents, that realizes the most behaviors of adolescents in Bangkok used the Facebook. The second is about The relationship between demographic, Facebook components, and Consumer behavior of using Facebook has relate to entrepreneur, educational institutions and government and departments know how the way of to improve and appreciate of demographic, Facebook components and consumer behavior could motivate the entrepreneur create new strategy to do business and marketing strategy attractive to the customer make them interesting to the products. This research could help to know the Facebook components of customer behavior better.