This research article's goal is to analyze the impact of micro, small businesses on economic growth through a case study of Juba, South Sudan's Konyokonyo, Custom, and Jebel markets. It also looks at the difficulties faced by this sector in obtaining loans from most financial institutions as well as the significance that micro, tiny businesses play in creating jobs. The study gathered information from 51 respondents who were micro and small business owners in the konyokonyo market, custom market, and jebel market in Juba City. The information was analyzed using the SPSS statistical package with the help of statistical tools like tables, pie charts, bar graphs, histograms, frequencies, and percentages. According to the report, micro and small businesses have made a significant contribution to South Sudan's economic growth and development through the creation of jobs, GDP, the eradication of poverty, the empowerment of women, and the support of larger businesses. Nevertheless, despite the sector's significant contributions, South Sudan's micro and small businesses face a number of difficulties, including a lack of cash, a lack of knowledge, problems with energy and power, and faulty record-keeping. The study's findings support the idea that government at all levels and essential stakeholders should help micro and small businesses in order to ensure their long-term viability. The researcher suggests that there should be monitoring and supervision by the sectors that provide credit to micro small businesses to ensure that operators in the konyokonyo, custom, and jebel markets use the loans for the intended purposes in order to reduce default and collapse rates for long-term existence.