This book introduces application of AutoCAD based on cases, aiming to develop students AutoCAD drawing skills problems solving ability. It consists of 12 chapters, with the main contents including AutoCAD drawing environment and basic operation, 2D basic graphics drawing, graphics editing, drawing of complex plane figure, parametric drawing, text writing and dimensioning, methods and techniques of drafting typical part drawing and assembly drawing, 3D solid model creating, graphical output and AutoCAD Certificate Examination exercises. The book can be used as teaching materials for the Computer-Aided Design and Drafting class of machinery, electronics and industrial design majors of vocational colleges and also a reference for engineering technicians and computer enthusiasts.