The main objective of this study was to assess the supervisory practice of cluster resource centre (CRC) supervisors in Jimma Zone primary schools. To achieve this purpose, the descriptive survey design was employed. Data were collected from 238 randomly selected teachers, and 60 school principals with a response rate of 98.6%. Moreover, 12 CRC supervisors and 6 Woreda supervision coordinators participated through purposive sampling. Questionnaires, interview and observation were used to collect data. Data were analyzed by using percentage, t-test, mean and standard deviation besides using descriptions for the qualitative data. Consequently, the obtained result confirmed that CRC supervisors are less successful in playing their administrative, linking, and pedagogic and community mobilization roles and responsibilities on continuous base. In order to solve the problems and alleviate the challenges, a collaborative work is recommended to the CRC supervisors of Jimma Zone, Woreda Education Office, Regional Education Bureau and other stakeholders to capacitate the supervisors through providing training, allocating budget and improving their working conditions.