The purpose of this study was to examine and investigate the major institutional factors affectingrnrVEr trainees ' academic performance in the selected rVEr colleges of the Benishangul GumuzrnRegional State. rhe subjects of the study were 150 trainees, 30 trainers, 6 rVEr deans as well as 1rnregional education bureau rVEr expert. ro meet this purpose both the primary and secondary datarnsources as well as qualitative and quantitative data were used. Questionnaire, interviews,rnobservation checklists as well as document analysis were made. In this endeavor, a descriptivernsurvey research method was employed .Regarding the selections of the trainees and trainers arnstratified simple random sampling technique was used where as regarding the rVEr deans, regionalrneducation Bureau rVEr experts and the two rVEr colleges a purposive sampling technique wasrnused. rhe study revealed that the trainees' academic performance was affected by many andrninterrelated institutional factors. Consequently, it has indicated that the trainees' academicrnperformance was marked by lack of awareness on the part of the regional education Bureau rVErrnexperts and the deans of the respective rVEr colleges. Based on the findings of the study, it isrnsuggested that the sampled rVEr colleges workshops and laboratories must be equipped withrnadequate and necessary training materials and equipments, the rVEr curricula must be revised, therntrainer must get updating and refres her training in their specific fields of study, smooth contacts andrnrelationships must be conducted with the companies providing cooperative and in company trainingrnprograms