The course is an important basic course in MSE, Physics, Chemistry and Biology. This course provides undergraduate level students basic theories and knowledge of crystallography. The purpose of this course is to provide fundamental knowledge for further learning in courses such as Solid Physics, Modern Material Characterization and Analyzing Techniques, Materials Physics, etc. Fundamental topics such as the concept of crystal, the symmetry of crystal, the properties of crystal, and some crystal characterization technologies will be introduced.