To　achieve　the　goal　of　efficient　organic　pollutants　removal　and　detection,　Bi/Bi2O3/WO3　composite　was　rationally　designed　and　prepared　via　a　hydrothermal-solvothermal　method.　With　ethylene　diamine　tetra-acetic　acid　(EDTA)　as　the　dispersant,　three-dimensional　(3D)　lavender-like　architecture　Bi/Bi2O3/WO3　was　formed,　of　which　nanorods　was　vertically　surrounded　by　nanoflakes　with　Bi　spheres　dispersed　around　randomly.　Compared　with　other　products,　Bi/Bi2O3/WO3　composite　performed　highest　visible-light　photocatalytic　activities　to　organic　dye　methylene　blue　(MB)　and　endocrine　disrupting　compound　bisphenol　A　(BPA),　both　are　up　to　95%　degradation　rate,　and　the　reusability　of　photocatalyst　was　conducted.　The　superior　photocatalytic　performance　could　mainly　contribute　to　the　localized　surface　plasmon　resonance　(LSPR)　effect　of　Bi,　which　injects　high-energy　electrons　to　the　Z-scheme　structure,　promoting　the　utilizing　of　light,　generation　of　active　sites/species　and　quick　transfer　for　carriers.　Atoms　of　BPA　with　high　Fukui　index　were　calculated　and　the　degradation　pathway　was　proposed　based　on　density　functional　theory　(DFT).　Besides,　the　as-prepared　Bi/Bi2O3/WO3　showed　considerable　sensitivity　of　detecting　trace　organic　pollutants　by　surface-enhanced　Raman　scattering　(SERS),　and　a　synergistic　system　to　achieve　the　＂detection　to　degradation　＂　was　illustrated,　indicating　the　bifunctional　and　multi-applicative　potential　of　the　as-prepared　products　in　practical　wastewater　treatment.