We　demonstrate　the　feasibility　to　control　the　confined　electromagnetic　field　by　surface　plasmon　poloritons　(SPPs)　excitation　and　scattering　modulation　based　on　the　pre-processed　Au　nanostructures　under　the　irradiation　of　single-shot　femtosecond　(fs)　laser　pulse,　and　then　to　control　the　surface　tension-induced　molten　Si　transport　due　to　the　directed　lateral　temperature　profile,　thus　resulting　in　the　formation　of　Si　nanostructures.　Annular-shaped　fs　laser　pulse　is　employed　based　on　nonlinear　optical　effect　of　frequency-doubling　process　to　imprint　Au　planar　nanostructures　with　various　morphologies.　Because　surface　plasmon　polaritons　can　be　easily　excited　and　controlled　on　planar　nanostructures　of　noble　metals,　the　localized　electromagnetic　field　can　be　effectively　modulated　by　controlling　the　metallic　nanostructures.　Thus,　the　quasi-plasmonic　Au　nanostructures　act　as　precursors　for　controlling　the　subsequent　electromagnetic　field　by　fs　laser　irradiation.　Upon　irradiation　of　pre-processed　Au　nanostructures,　confined　electromagnetic　field　induces　a　specific　surface　tension　profile,　causing　directional　transport　of　molten　Si.　After　solidification,　Si　nanostructures　of　controllable　morphologies　can　be　fabricated.　Simulation　results　are　in　agreement　with　the　theoretical　mechanism.　Moreover,　further　optimized　modulation　of　nanodome　can　be　achieved　by　controlling　the　focus　spot　control　combined　with　the　polarization　state　control.　This　paper　provides　an　effective　method　for　enabling　a　scalable　formation　of　Si　nanostructures.