<p><strong>Background: </strong>Ethiopia started Human Immunodeficiency Virus (HIV) Case-Based Surveillance (CBS) system along with the Research Electronic Data Capture (REDCap) in June 2019. Public health surveillance system should be evaluated periodically to assure the effectiveness and efficiency of the systems.&nbsp; But in Ethiopia, HIV CBS system implementing facilities have no evidence on implementation status whether it is effective or not.<strong>&nbsp; </strong>Therefore,<strong> </strong>this study aimed to evaluate the implementation of core surveillance activities and attributes of surveillance system of HIV/AIDS in East Gojjam Zone, Northwest Ethiopia, 2024.</p>