The present invention relates to an address translation method using a flash translation layer modules,, (a) Short Fine retrieving a specific LBA (Logical Block Address) for the requested data by using a hash table -Grained Community; (B) the Short Fine-Grained Community hash table entry exists for a particular LBA on whether or not the judgment that the presence of LBA if a PBA (Physical Block Address) in conversion to phase; (C) the determination result of the step (b), if there Long Fine-Grained to determine whether the cluster type in the hash table entry for a particular LBA is present, if any step of converting the LBA to the PBA; And (d) (c) the judgment result in the step, if one does not exist using a Coarse-Grained Community hash table converting the LBA to the PBA;. And a ; in accordance with the present invention address conversion method, in the large-capacity NAND flash memory intended to be used and has the effect of reducing considerably the amount of the main memory for the address translation.
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