At first the shortcomings of the evaluation methods of computer programming experimentation course is analyzed, the formative evaluation is a new evaluation method, compared with the traditional evaluation, it is more reasonable and objective. Teachers, students, the experiment group and the experts are the subject of the formative evaluation. The index of the formative evaluation includes 4 aspects: grammatical proficiency, algorithm application ability, algorithm design capability and quality of experiment report, the weight of the indexes i...