C program design is a course with high practice. Experimental teaching is an important part of the course. The purpose is to let students in the experiment to actively practice, and to understand the essence of programming, to improve the ability to analyze and solve problems. Based on the summary of the existing common problems in the experiment teaching links of C language, on the proposed scheme is suitable for the current teaching environment and more C language experimental teaching reasonable improvement. The scheme has the important significance to improve the teaching effect to solve the problems in experiment teaching.