Human trafficking is a big problem at present. Many researchers have ideas and guidelines to solve this problem, but it still failed to stop human trafficking. On the other hand, there are more and more trafficking and there have several causes. The first cause is poverty. Each country have poor people more than rich people and the poor people need money to raise a family and lives. Another cause is education most victims lack of knowledge and critical thinking, it easy to fool. Final cause is law is also an important factor because the law is not strict so the traders are not afraid of punishment.