The port system serves not only as an integral component of the transport system, but also as a major sub-system of the broader production and logistics systems. The main problems of the ports in developing countries is lack of infrastructure which lead to the low revenue generation by the government. This affects the economic development of many developing countries including UAE as port plays a very vital role in many countries by contributing to the national expenditure through revenue generation. This study was used six components for measuring the impacts of port performances on economic development that are; (i) Location and Hinterland; (ii) Hinterland Access; (iii) Draft and Accessibility; (iv) Presence of firms in the Port; (v) Port and terminal efficiency; (vi) Port charges. Therefore, this study intends to measure for the impact of port to the economic development in the developing countries. This brings to the hypothesis of this study that all the six components have significant impact to economic development of developing countries. In this case, a total number of 250 representing the population of Seaport staff at UAE ports. The rate of respondent is 72.8% of the sample. The analysis of data using appropriate statistical techniques statistical package for social sciences (SPSS) and smart PLS as the research is quantitative in nature. Results of analysis shows that Hinterland Access, Port and terminal efficiency and Port charges found not significant with economic development of developing countries. Results of this study will squarely help the policy makers of developing countries as regard to seaports and its impact on economic developments.