Background: Child wasting, or acute malnutrition, is a life-threatening condition that increases the risk of death and serious illness. Despite efforts such as the Global Action Plan on Child Wasting, which aims to reduce wasting prevalence to less than 3% by 2030, challenges persist, with Ethiopia recording a 7.2% rate. A major shortcoming of the global strategy is the focus on contact coverage, which often overlooks service quality. Effective coverage that incorporates the quality of health services offers a solution. Objective: To assess the effective coverage of management of child wasting in six regions of Ethiopia. Data and Methods: We conducted a secondary analysis of cross-sectional data obtained from household and institutional surveys. Participants included caregivers and children aged 6-59 months. By combining household data with expanded measures of health facility readiness and process quality from health posts, we calculated the quality-adjusted coverage. Results: Contact coverage for severe acute malnutrition (SAM) and moderate acute malnutrition (MAM) was 40% and 37%, respectively. Readiness scores for providing SAM and MAM services at health posts were 57.9% and 76.4%, respectively. The input-adjusted coverage for SAM and MAM, considering facility readiness, was 23% and 28%, respectively. The coverage adjusted for complete intervention receipt was 7% for SAM and 12% for MAM. Quality-adjusted coverage for both SAM and MAM was 4%. Conclusion: Efforts to address acute malnutrition in the Ethiopian health system show commendable progress but also highlight critical gaps and inconsistencies. A holistic, quality-driven approach is needed to effectively combat child-wasting in Ethiopia.