Early Marriage is one of the global problems that undermine the personal development and the rights of women very seriously. It is very delicate among the developing countries such as Ethiopia. Under-aged girls in Ethiopia are susceptible for child marriage since a long time ago. Irrespective of the efforts of the government, the society, and the international community; the problem is still persistent throughout the country. The traditional beliefs, religion, and the economic motives are recognized as the root causes of early marriage in Ethiopia. It exposes the pre-matured children into psychological and emotional traumas, severe violence, denial of social services, reproductive health problems and migration to the nearby poor towns and abroad. Thus, sensitizing the stakeholders, educating girls, and supporting the runaways and others who would otherwise the victims of early marriage are the way forward to reduce the adverse consequences of child marriage in Ethiopia.