Covid-19 outbreak that was discovered in China in December 2019 has crippled the world economy and caused the delivery of humanitarian aid to Yemen to be hampered. In addition, there are still wars that cause damage to health facilities. The war, the Covid-19 pandemic, and Cholera disease are adding to the devastating effects on growing children in Yemen. UNICEF, as an IGO that focuses on children, reports that in 2020 there were approximately 34 cases of child abuse and attacks on educational facilities involving children. This research describes the role of UNICEF in Yemen from 2019 to 2020 in fulfilling children’s rights due to 3 disasters, namely Covid-19, internal conflict, and cholera that occurred in the country. This research looks at the role of international organizations as aid providers which is manifested in the form of Humanitarian Assistance. As a descriptive study, data for this research is collected from 2019 to 2020, including reports from The UNICEF, the WHO website, the UN website, and various verified mass media. UNICEF's role in the form of Humanitarian Assistance in Yemen is manifested in 5 programs: education, child protection, nutrition, health and sanitation. Keywords: UNICEF, Yemen, Humanitarian Assistance, Covid-19 Pandemic, Children’s Rights.