"Soil Mechanics" is a degree course in Zhejiang University City College of Civil Engineering. The teaching group of this course has thought and practiced the reforms in teacher-student interaction, attendance innovation, materials selection, layout of the homework and the form of practice teaching.Simplifying the derivation of calculation formulas and strengthening the experiment and practice which can develop the students’ manipulative ability and innovative spirit.Interacting with students which can make them learn more about the teacher and this course. At the same time, teachers can understand better about the students’ thinking, then adapt and improve each other.The reform of teaching material selection and arrangement of work which make students have more examples to refer. The free choice in after-school subject which allow students to sum up the knowledge points and that would enable the consolidation of classroom teaching. At the same time, by consulting reference books, students will find the knowledge points which the teacher did not emphasized.