This study aim on establishing the impact of corruption and governance and economic development in Juba county, Jubek state South Sudan.The objectives of the study are; to assess the relationship between Corruption and Governance, to assess the relationship between Corruption and Economic Development and to analyse the factor structure for Corruption and governance on Economic development. The study employed a cross sectional and descriptive design while using qualitative and quantitative approaches. The study population will be 150 selected using simple random sampling techniques. The sample size determination was made using Krejcie and Morgan Table (1970) formula. The sample size is 108. The data will analyze using Statistical package for social scientists (SPSS 20). Corruption is the main threat to Governance and Economic Development in the Republic of South Sudan. ‘Good governance entails accountability, transparency, enhanced public participation in decision making, strengthened public sector and civil society institutions and greater adherence to the rule of law. Corruption results in grave violations of socio-economic rights, condemns people to extreme levels of poverty and often leads to social unrest. Curbing corruption is therefore critical to the achievement of good governance and the rule of law in many counties such as Juba County, Jubek State, and South Sudan. Although most legal systems in East Africa prohibit corruption, the practice is significantly different. The Government of South Sudan is working hard to make the citizens improve their standard of living through the formation of South Sudan Anti-corruption commission to eradicate corruption in the country. The rule of law is also enforced on citizens who are embezzling public finance for personal gain. Those who involved in fraud and political corruption or any kind of corruption are brought to justice.Governance is an indeterminate term used in the international development literature to describe how public institutions conduct public affairs and manage public resources. Governance is ‘the process of decision-making and the process by which decisions are implemented (or not implemented)’ Governance is always seen when Local elections are conducted freely and fairly, according to international standards and national legislation, and without any fraud. Governance has eight major elements. E.g.,it is participatory, consensus oriented, accountable, transparent, responsive, effective and efficient, equitableand inclusive and follows the rule of law. It assures that corruption is minimized, the views of minorities are taken into accountand that the voices of the most vulnerable in society are heard in decision-making. It is also responsive to the present and future needs of society. Economic development can be defined as efforts that seek to improve the economic well-being and quality of life for a community by creating and/or retaining jobs and supporting or growing incomes and the tax base. Economic development is the process by which a nation improves the economic, political, and social well-being of its people. The term has been used frequently by economists, politicians, and others in the 20th and 21st centuries. Economic development typically involves improvements in a variety of indicators such as literacy rates, life expectancy, and poverty rates. GDP does not take into account other aspects such as leisure time, environmental quality, interracial and united international peace, freedom, or social justice; alternative measures of economic well-being have been proposed.