The analysis and treatment methods of some problems in Fei Enman Lecture Notes on Physics reflect the analysis and treatment methods commonly used by Fei Enman himself and other physicists working in frontier research fields. The explanations of basic concepts, theorems and laws in the book are not only vivid and clear, but also easy to understand, with special attention to a profound description from the physical point of view. In order to expand students' knowledge, the book also lists many applications of basic physical principles in various aspects (such as astrophysics, geophysics, biophysics, etc.). ) and some recent achievements in physics.