The purposes of this research was to study age range affect Facebook usage with people in Phuket. This study are divided depending on span of age. The samples consisted of 90 people in Phuket and divided into three span of age include children (under 15 years) 30 peoples, teenager (15-30 years) 30 people and adult (upper 30 years). The research method were two ways which are questionnaire and interview.The results of the study were as follows The purpose of using Facebook in each age group. Duration of using Facebook per day in each age group. Level of satisfaction in using Facebook in each age group. The importance of Facebook has on user in each age group. And user in each age group think they get advantage or disadvantage from using Facebook. This information can tell that the influence which 90 sample received from Facebook.The period they spend on Facebook each day, said the importance they have on Facebook Each day of them has a Facebook get involved and become important. thing in their life. However, there are still some people who say that they do not see the importance of Facebook or receive disadvantage from Facebook.