Self-assembled organic-inorganic hybrid nano-materials have recently received much attention due to their novel and original functions, including new electronic, optical, magnetic, and catalytic properties. Especially, reactions in organic-metallic hybrid materials are closely related to biological reactions, such as the reactions in metal-containing protein, and the controlled metal ions assembly into organic polymers becomes very important. In the first part of this review, recent progresses in two types of organic-inorganic hybrid nano-materials (Organic compounds [character: see text] inorganic mesoporous materials and Metal ions [character: see text] organic polymer) are summarized. In the latter parts, dendrimer-metal complexes, examples of nature-mimetic materials, are introduced, and their controlled metal assembly in dendrimer and their application are reviewed.