On the basis of civil aviation professional course construction of soil mechanics and geotechnical engineering, the instructional objectives were formulated considering characteristics of big class teaching, the inside plan and outside activities of teaching strategy were designed. Attention targets and interest orientation of post-90s students were studied, and then reform plan of teaching method to increase course attraction was proposed. Some proposals of classroom teaching in teaching management were offered, and situational teaching method was adopted to reform practice teaching link. Then, new teaching model of soil mechanics and geotechnical engineering was built. Teaching trial about partial research results was carried out, and favourable effect was obtained, which provided theory basis and teaching reference for teaching reformation of relevant professional basic courses.