Researchers and engineers have proposed an interesting and attractive solution the construction of very large floating structures. In recent years, an attractive alternative to land reclamation has emerged – the very large floating structures technology. Japan is the world’s leader in VLFS (Very large floating structures).VLFS can and are already being used for storage facilities, industrial space, bridges, ferry piers, docks, rescue bases, airports, entertainment facilities, military purpose, and even habitation in many countries. In this seminar paper we can discuss about the types of VLFS, Components of VLFS, the advantages, Disadvantages Applications of VLFS in detail. VLFSs can be speedily constructed, exploited, and easily relocated, expanded, or removed.