Abstract: Experimental teaching assessment is the key to ensure the quality of teaching.Based on the guiding principle of guiding,operational,scientific and normative,this paper constructs the evaluation criteria of basic and verification experiments,design and development experiments and research and innovative experiments.Practice has proved that this assessment method can enhance the sense of responsibility of instructors,improve the experimental teaching methods,improve the quality of experimental teaching,and urge students to better construct their own knowledge system and skills base.At the same time,the assessment method can also improve students autonomous learning ability and experimental ability.