Abstract The increase of family breakdown down rate in Juba City has been due to alcohol and drugs addiction, financial problems, death, plus psychological, sexual and emotional abuse, threatening diseases like HIV/AIDs and inability to resolve conflict among others. The objective of the study was to investigate the causes of family breakdown and its effects on the children in Juba City. The effects of family breakdown on children include difficulties in school, stress, early engagement in sexual activities, insecure and afraid of the future, depression and fear of being abandoned. The forms of family breakdown identified during the study include death, separation and divorce. The rate of the family breakage was indicating 78.3%, though the study was based in Juba city, it reflects the entire country since all of the ten states’ habitants were included in study. Some of the cultural practices were found of backing up the high rate of family breakdown and such practices include force marriage, polygamy marriage, inheritance of widowers and high bride wealth. The study proved communication skills, creation of family laws, supporting the children of the low families, marriage preparation and parenting new initiatives and information giving and mediation are the fundamental alternative solution to family breakdown. In conclusion, the study proved the family breakdown affects the children performance in schools in line with other effects such as; stress, depression, fear of being abandoned, insecure and afraid of the future and torn in two among others. In the end, the study recommended that the three stakeholders; government, NGOs and the academia to play respective role suggested to them by the researcher in accordance with the findings.