Surface plasmons(SPs),which is actually a kind of electro-magnetic(EM)wave that propagates along metal-dielectric interface with fields exponentially decaying in both medias,has been extensively investigated for decades.Lots of experiments have been performed to verify the fact that the optical energy can be squeezed into several nanometers in the form of SPPs under proper illumination,where the field intensity is strong enough to propagate to far-field.Previously,plasmonic tips and tapers have been fabricated via eletro-chemical etching,templet striping,nanoparticle adhesion and FIB milling.In order to implement plasmonic focusing effect,asymmetric structures designs are needed when illuminating with common linearly polarized light.Our aim is to simply design an asymmetric nanostructure to deduce the effect that light polarization has on plasmonic nanofocusing.We are able to fabricate such 3D asymmetric structures conveniently using a 3D Nano-printing system,which are turned to be plasmonic structures after magnetron sputtering subsequently.The strong nanolocalized optical fields of the tip can induce many enhanced nonlinear-optical phenomena which have various prospective applications,where low background noise,high resolution is needed such as NSOM,TERS and single cell imaging.