The mainpurpose of this study was to determine the relationship between undergraduate students' admission practices and their academic performance. The participants of this study were 233 undergraduate students who wereintheir first and third-year studies as well as two MaddaWalabu UniversityProfessors. A mixed Research method was employed to analyze the data collected through Questionnaires, Interviews, and Documents. T-tests and correlation coefficients were performed to see the differences between students' academic performance and their admission practices. The result of this study revealed that there is a significant positive relationship between the students' admission practice and their academic performances at this University. This study determined that one of the factors impeding students' learning and academic performance at Madda Walabu University was the admission practice employed at this University to enroll students into different academic Programs. Therefore, this study expands the understanding that admission practices are among the factors influencing students' academic performances.