新型冠状病毒肺炎(COVID-19)疫情背景下，教育部提出"停课不停学"，传统的教学方式不能满足当前的教学要求，在线教学成为必要采取的教学方式；进入后疫情时代，线上线下混合式教学成为必然趋势。"课程思政"是实现"立德树人"的重要路径，是教育工作者在讲授各类课程过程时，主动融入思政内容，使所授理论课与思政内容有机融合，从而构建全方位育人格局。COVID-19疫情背景下，如何实现在线教学与线下教学质量的等效，如何进行混合式教学，如何进行课程思政，是每位教师必须思考的问题。诊断学是医学生初涉临床的第一步，通过诊断学的学习，培养学生医患沟通能力，在教学环节中融入人文素质及医德医风教育，使学生在接受专业知识的同时，潜移默化地接受人文精神的培养，对于强化医德医风，全面提高医学生的人文素质，培养合格的医务工作者具有重要的现实意义。

Under the background of Corona Virus Disease 2019 (COVID-19) pandemic, the ministry of education puts forward the idea of " suspended class, ongoing learning" . The traditional teaching methods cannot meet the current requirements, so online teaching becomes the obligatory teaching method. In the post-epidemic era, mixed online and offline teaching has become an inevitable trend. Courses for ideological and political education is an effective way to foster character and civic virtue of people. Its main idea is to emphasize that all teaching subjects and educational activities should be permeated in ideological and political education to form an education pattern of the whole process and curriculum system. Under the background of COVID-19 pandemic, how to achieve the substantial equivalence quality of online learning and offline course, how to carry on mixed teaching and courses for ideological and political education are the issues that every teacher should think about. Diagnostics is the first step for medical students to begin their clinical practice, which can develop students′ doctor-patient communication skills by the study of diagnostics, and integrate humanistic quality and medical ethics education in diagnostics course, students can accept professional knowledge and cultivation of humanistic spirit at the same time. This has great practical significance in training qualified medical staff with humanistic quality and medical ethics.