Public health interventions are critical in preventing and controlling diseases, promoting healthy behaviors, and improving overall population health. Evaluating the effectiveness of these interventions is essential to ensure that resources are being used efficiently and that desired health outcomes are being achieved. Epidemiological methods play a key role in evaluating the impact of public health interventions by providing rigorous and systematic approaches to study design, data collection, analysis, and interpretation. This study aims to review and discuss the application of epidemiological methods in evaluating the effectiveness of public health interventions. The study will also explore the challenges and limitations of using epidemiological methods in evaluating public health interventions, such as biases, confounding factors, and ethical considerations. Recommendations for improving the design and implementation of studies evaluating public health interventions will be discussed, including the importance of collaboration between researchers, policymakers, and community stakeholders. Overall, this study will highlight the importance of applying epidemiological methods in evaluating the effectiveness of public health interventions and provide insights into best practices for conducting and interpreting these studies.