The invention discloses a preparation method for a cypress leaf shaped platinoid superlattice nano structure, and relates to nano material controllable preparation, electrochemical deposition and a nano material modification technology. In order to obtain the structure, a thin-layer gold film with thickness greater than 100 nm is vapor-deposited on one surface of an ordered porous anode aluminum oxide template, so that template holes are kept, the bottom of the template is completely covered, the bottom surfaces of the holes are sealed and the holes of the template are guaranteed to be through for obtaining a nano wire by virtue of an electrodeposition method; and then, a platinoid nano wire synthesized by electrochemical deposition is etched by use of a chemical solution etching method. By virtue of the process, the cypress leaf shaped nano structure which is formed by a platinoid common electrochemical deposition material can be obtained. According to the preparation method, the cypress leaf shaped nano structure with certain purpose and certain function is synthesized by use of the functional material, and the cypress leaf shaped nano structure is used for future fuel cell catalysis and other applications.