Metal nanoclusters as a functional unit with a unique structure are of great significance for studying, regulating their interactions, and realizing certain assembly designs. A variety of functional materials based on nanoclusters have been obtained through assembly design, which is an important basis for the application of nanoclusters. The assembly of the metal nanoclusters endow the cluster with multiple structures, giving rise to broader performance. When atomically precise coin metal nanoclusters encounter assembly, cluster science blossoms. This chapter focus on the assembly of coin metal nanoclusters, for providing a general understanding of the formation of nanoclusters and establishing clear design guidelines for fabricating new nanoclusters with desired functions in the future.