The outbreak of Covid-19 has severely disrupted the education sector, highlighting the urgent need for disaster mitigation literacy to enhance student preparedness and awareness. However, there is a lack of validated evaluation instruments specifically designed to measure students' understanding of non-natural disaster mitigation. This study aims to analyze the validity of a Covid-19 mitigation literacy test developed as a learning evaluation instrument. The research employed a Research and Development (R&D) approach using the 4D model (Define, Design, Develop, and Disseminate), with a focus on the expert validation stage. The instrument was assessed by three competent validators comprising a lecturer, a teacher, and a health professional. Data were collected through validation questionnaires and analyzed using mean scores to determine validity categories based on established criteria. The results revealed that the test achieved an average total score of 3.24, falling into the valid category. The highest score was obtained in the alignment of test indicators with basic competencies (3.67, very valid), while aspects such as test identity, instructions, and standard language usage scored 3.00 (valid). These findings indicate that the developed instrument meets academic and pedagogical standards, making it suitable for use as an evaluation tool to measure students' Covid-19 mitigation literacy. Consequently, this test can be effectively integrated into classroom instruction to support evidence-based learning and strengthen student preparedness against non-natural disasters.