Developmental Performance-based Teacher Evaluation Model is conceived in renovating the reward-or-punishment-based teacher evaluation while practicing the notion of developmental teacher evaluation theory, aimed at maintaining teacher's due exterior stress and stimulating his/her inner motive for professional growth to attain the goals of improving learning, teaching and facilitating teacher development. This paper expounds theoretically and practically the model's rationale, the flow of the frame, the operating process as well as the feasibility of its effective operation.