Physics is the foundation of all natural sciences, the template of mathematical science. But physics, as the public knows it, is often that of the Newtonian paradigm. As an extension of natural philosophy, every major change in physics itself has an impact on the natural philosophy. In the 20th century, at least three revolutions occurred: quantum theory, relativity, and chaos theory. These theories have also an impact on our views on basic issues such as matter, reality, natural law, and certainty. This course systematically introduces the basic contents of philosophy of physics, including: 1) the natural philosophical significance of basic physical quantity, and the philosophical connotation of the basic laws of physics (such as the laws of thermodynamics); 2), physical methodology, such as model method, analogy, symmetry, etc.; 3) Philosophical issues at the forefront of physics, such as relativity, quantum theory, chaos, cosmology, etc.; 4), general philosophical questions based on philosophy of physics: realism and non-realism; reductionism and holisticism; composition and generation; 5), The picture of the world and our basic understanding of the physical world provide by physics; 6) the history of philosophy of physics itself; and its connection between physics and other philosophical questions of natural science; The relationship between philosophy of physics and philosophy of science in general.