This book mainly introduces the application methods and use skills of AutoCAD 2012 in Chinese version. It consists of two parts which are divided into a total of 12 chapters about AutoCAD 2012 basis, simple 2D drawing command, basic drawing tools, two-dimensional editing command, complex 2D drawing and editing commands, display control, text and tables, size marking, block and its properties, auxiliary drawing tools, data exchange, drawing and editing 3D grid, 3D solid drawing and 3D solid editing. With thorough explanation, full illustration and concise language, this book has cases matched with the knowledge in each chapter, enabling a further understanding of the readers.