Abstract: Over the past decade strategic vision and mission practices are important to the strategic plan implementation of any organization specifically in public sector where it comes to service delivery. Public organizations in Rwanda spends much time and effort on their formulation as they aren’t used as planning instruments. The purpose of the study was to examine the influence of strategic vision & mission practices on service delivery in Rwanda Development Board. This study adopted a descriptive approach. The study target population was 114 employees from Rwanda development Board. A sample of 89 respondents was determined using Slovin’s formula which was stratified into three strata: top management staff, middle management staff, and low-level management staff. Census method brought out the aspect of accuracy and reliability to this study, because, each and every individual participated to this study.