Deep learning pays attention to the connection and transfer of knowledge,which is conducive to improving the quality of students’learning.Therefore,based on the theory of deep learning,this paper uses the research method of questionnaire survey and case interview to analyze the deep learning quality of freshman engineering students’thermodynamics knowledge.It is found that most of students are in the deep learning level of thermodynamics,with high learning quality and significant learning effect,and students’thermodynamics learning has indiv...