The present invention relates to surface-enhanced raman scattering (SERS) nanoparticles, a method for preparing the same, and applications thereof. The present invention is characterized by having a nanowell on the inner surface of a metal shell so that a raman active material can be placed in the nanowell whereby it is possible for the structure of the nanowell in the metal shell to cause further SERS. Thus, the nanoembosses according to the present invention are an effective approach for generating strong SERS signals, which allows for a platform for manufacturing novel structures for generating strong electromagnetic fields and also for sensitive and reliable biomedical applications.
