Nowadays, the spread of drug is a big and serious problem. Many countries spend a lot of money to try to stop the drug. However, it still growing in teenagers. For example, from the survey in Thailand about the problem of drug from the year 2547 until now, it still growing and cannot control because drug is so powerful and can make teenagers become addictive, so every need to find the ways to stop it. Therefore there are three solutions to prevent the drug addiction in teenager: good relationship with family, join society activity and imposed laws strictly.