The study aimed at assessing thefinancial resource challenges facing airports and seaports development projects in Zanzibar. However, there was inadequate information on howfinancial resources determines the performance of airports and seaports development projects in Zanzibar. The study adopted positivism research philosophy, explanatory, and descriptive cross-sectional research designs. Also, quantitative data were collected by the use of questionnaires. The questionnaire was administered to 214 respondents all randomly drawn from the five projects selected in Zanzibar. Multiple linear regression models were used to analyse and test the hypotheses. The study found that the effect of financial resources on the performance has a positive contributed to the performance of airport and seaports development projects. The study recommends that the government should enforce and strengthen the policy on acquisition of financial budgetary allocation for public development projects.