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The hardware related courses in computer major require a lot of practise on experiment to fully understand the theoretical knowledge for the students. Especially for the first-year or second-year undergraduate students, how to cultivate students' practical ability effectively is the subject of Computer Science in Colleges and Universities. This paper introduces the experimental teaching reform trial of the Digital Logic Circuit courses, and sums up the experience of how to stimulate students' awareness of innovation in the hardware experiment teaching and how to improve the students' practical ability. This paper proposes that we should start the student independent innovation experiment as soon as possible at the university stage. We design the independent innovation experiment in Digital Logic Circuit of the hardware experiment, that experiment is an open-minded experiment. After years of experiments carried out, the students deepened understanding of the knowledge of theory course, improve the interest in the design of hardware, understand the basic processes of the design of electronic products, improve the ability of practical, and establish the consciousness of innovation and practice. Our trial has proved that it is very meaningful and feasible to enhance the ability of innovation practice in the low grade students of computer major.