Safety evaluation of dams has importance in accessing their functioning. This essay carries out safety evaluation on the basis of Matitan Reservoir Project. Through analysis and recomputation, evaluation of project quality is A; operation management, B; safety of flood-prevention, C; safety of dam construction, A; vadose safety of the dam, B; metal structure, C. Analysis by synthesis, Matitan Reservoir Dam is graded as Band 3. At the end of the essay, the author offers some suggestion in reinforcement