An evaluation system including experiment preparation， experiment process， com-prehensive design of experiment， experiment skills and written exam was established in order to adapt to the experimental teaching reform in our school. Experimental preparation assessment was to evaluate ‘preview and self-evaluation report’ prepared and submitted by students. Experimental process assess-ment was to evaluate students' classroom performance and experiment reports. Assessment of compre-hensive design experiments was to evaluate the overall participation of students. Skill assessment was consisted of oral test and experiment operation test. Final written examination， mainly consisting of subjective questions， emphasized on student's flexible use of knowledge and ability to solve practical problems. The evaluation system of promoting student's learning and teacher's teaching through the examination not only fully arouse student's attention on experiment， but also make teachers more ob-jectively and really understand students' learning situation and the teaching effectiveness.