Metamaterial Design and Additive Manufacturing covers in details of the optimization design, manufacturing, microstructure, mechanical properties, acoustic properties, mass-transport properties and application examples of PMs fabricated by selective laser melting additive manufacturing Technology. Our book introduces the definition and concept of pentamode metamaterials briefly firstly, and then describes the characterization of the pentamode metamaterials manufactured by AM in detail, including manufacturing fidelity, mechanical response and acoustic properties and so on. Last, it analyses the research situation, problems and more applications of additive manufacturing pentamode metamaterials.