In the past, we realized that we should pay particular attention to women and children, who are most vulnerable in wars and conflicts. In fact, we have also found in the proposition of development that children, in particular, are apt to become the weakest group. They can be easily controlled and transformed into profit-producing tools like forced beggars, prostitutes and laborers. They are likely to be adversely impacted by various problems in the period of social transition, which include drug addiction, violence, infectious diseases and population mobility. They are also prone to be marginalized in the decision-making of achievement sharing process, as such that the standards in medical treatment and welfare are lower for children compared of adults. Fortunately, the world has enacted a human rights convention for children, the Convention on the Rights of the Child, a convention with the most signatory countries. Though it does not have too much content, it is an important platform for the discussion and development of children’s rights.