In the context of the AI era, the architectural design industry is ushering in a digital revolution. Based on the theory of digital design and the whole life cycle of digital design, this book returns to the origin of design and integrates digital design into all aspects of architectural space modeling, facade texture and roof design. Through the way of digital design laboratory, it delves into the concept design of engineering project, optimization design and construction technology, selected analysis of international classic architectural works and building northeast local engineering examples. It also emphasizes the guiding significance of practical engineering, and shows the application of digital tools in the actual project design, and how to promote the innovation of architectural design. The content of the book provides readers with a comprehensive perspective on the application of digital design in the field of architecture. In its rich digital architectural vocabulary and enhanced design expression, it stimulates the creativity of architects in the new era and promotes the development of the industry to a higher level. This book is suitable for architects, designers and architecture students, providing a new perspective and practical guidance for digital design.