为了保证结构力学线上混合式教学质量，促进学生主动学习，提升人才培养质量。以结构力学教学大纲与培养目标为依据，选择学习通和钉钉软件作为教学平台，优化配置教学资源，创新课堂教学设计，通过立德树人、学习引导、学习探索、教学提升和教学创新五个方面保障线上混合式课堂教学效果，通过作业、测试、互动讨论和签到四大模块保证全过程教学管理公平公正和平时成绩真实有效。结果表明：学生整体上学习态度端正，主动学习的积极性明显提升，平时成绩综合表现良好，期末卷面成绩综合表现较好，基本达到了线上线下教学效果实质等效的目的。教师用心，学生用力，结构力学课程线上混合式教学模式可以保障和提升学生培养质量。

In order to ensure the quality of online mixed teaching of structural mechanics, promote students'' active learning and improve the quality of personnel training during the outbreak of NCP. Based on the teaching syllabus and training objectives of structural mechanics, choose Learning Tong and Dingding software as the teaching platform, optimize the allocation of teaching resources, innovate classroom teaching design, through moral education, learning guidance, learning exploration, teaching improvement and teaching innovation, the online mixed classroom teaching effect is guaranteed. through the four modules of homework, test, interactive discussion and sign in, the whole process of teaching management is fair and just, and the results are true and effective.The results show that the students have a positive attitude towards learning, their enthusiasm for active learning is significantly improved, their usual performance is better, and the final paper performance is good, basically achieving the goal of substantially equivalent online and offline teaching effects.Teachers'' diligence, students'' exertion, the online mixed teaching mode of structural mechanics courses can guarantee and improve the quality of student training.