In order to solve the divorce between experimental and theoretical teaching in mechanics of materials caused by their different steps, the strategy of introducing material mechanics experiments into classroom was proposed. To this end, a small and lightweight material mechanics testing machine was developed, which is convenient for teachers to bring into the classroom for experiment demonstration, and to synchronize theory with experiment. The control objective of test machine was "small" and "portable", and the combined design was adopted. In addition, the commonly used experimental functions in material mechanics were considered. In the development of testing machine, the basic knowledge of material mechanics needs to fully understand, the principle of mechanical testing needs to know well, and the related knowledge of mechanical engineering, electronics and other interdisciplines are also needed. Therefore, it was a good scientific and technological innovation training project for college students. The participation of students is conducive to deepening the understanding of knowledge, widening the scope of knowledge, and improving innovation and operation ability. The educational reform mode of "introducing experiments into classrooms" with participation of college students can be applied to similar engineering courses.