Abstract: From the perspective of game theory， academic fraud in the evaluation of scientific and technological achievements is in fact a game between sci-tech staff and evaluation experts. By establishing the mixed-strategy game model of academic fraud in sci-tech achievement evaluation， the mixed Nash equilibrium solution was calculated， and the equilibrium solution based on such aspects as evaluation experts’ information screening cost， evaluation experts reward for discovering academic fraud， and the penalty probability as well as punishment degree was analyzed thoroughly. The results indicated that improving the severity and certainty of punishment， increasing evaluation experts reward， and reducing evaluation experts information screening cost could effectively inhibit academic fraud in sci-tech academic evaluation.

Key words: sci-tech achievement evaluation, academic fraud, mixed-strategy game