The principle of the compilation is to make the basic theory, basic knowledge and basic skill ideological, scientific, advanced, inspiring and suitable for specific readers, time and content. This book takes characteristics of medical students, existing syllabus and teaching requirements for follow-up courses into account. Two parts are included in this book: inorganic chemistry and organic chemistry. The part of inorganic chemistry covers knowledge of solution, redox and complexes; while the organic chemistry part is about chemical compounds and basic knowledge of Stereochemistry. Compared with previous books of this kind, the Compound chapter stress the structure characteristics of functional groups, property prediction and classic examples of chemical reactions and delete some content such as naming, physical properties and preparation which is not very close to medical profession. The most prominent feature of the book is unstressed knowledge system of Chemistry and stressed application of chemical knowledge, basic concepts and principles in Medicine.