The refugee itself is in the original sense a sad condition, which suffers from many difficulties every day. It is a pathetic reputation where people are constrained by pain of their past and present, by some form of oppression, who are seeking a safe place after being forced to flee from violence, war and by all forms of persecutions. Half of the world's refugees are children. Many refugee children are separated from their families to which they belong, and their entire childhood is away from their home and their parents. Refugee children are on the verge of many risks of violence, sexual abuse, prostitution, child labour, child marriage, exploitation, discrimination, trafficking and coercively military recruitment. They have been part of regressive aggression of war and witnessed many battles. It is very depressing that they saw such deep traumas at this very early stage of life. All such sudden emergencies and family disruption leave a profound psychological and physical imprint on children's health. Under the 1951 refugee convention, European Union Asylum Legislation and the European Convention, on Human Rights, refugees are entitled to rights and protection from many ill-treatment and barbaric practices. Refugee children are more prone to PTSD, malnutrition, physical injury, and this population who had faced such agony. These disruptions in the family lead to many acute shortages of funds, and financial things have been confronted. This article studies the hurdles and challenges refugee children and reviews the international declarations, treaties, and agreements to assess the efficacy of such principles in protecting the interests of refugee children.