This book introduces the cutting-edge technology of micro/nano structure fabrication from precision machining, electrical discharge machining (EDM) and precision grinding and injection molding, the contents of the presented book includes but not limited to the machining process, cutting tool preparation, tool path generation, and surface evaluation. This book provides a variety of feasible fabrication methods and advanced manufacturing techniques for the precision fabrication of micro/nano-structures, especially for complex micro/nano-structures. Since the book focuses on the micro/nano-structure fabrication methods including hieratical micro/nano-structures, graduate students, engineering technicians, and researchers in related areas will benefit from this book; also, someone in related application fields such as biomedicine, communication, optics may be the potential readers of this book.