This article presents a facile approach to preparation of polystyrene/silver(PS/Ag) asymmetric hybrid particles.In this method,polystyrene/polyglycidyl methacrylate(PS/PGMA)Janus particles were synthesized via internal phase separation triggered by evaporation of dichloromethane(DCM) from PS/PGMA/DCMin water emulsion droplets.Then,the Janus particles were aminated and sequentially carboxylated to obtain PS/PCMA-NHO_2 and PS/PCMA-COOH particles.Ag*self-assembled on the surface of PGMA hemisphere of the functionalized PS/PCMA particles by coordinating with amine/carboxyl.PS/Ag asymmetric hybrid particles with 7.29 wt%of Ag were obtained by reduction of Ag~+.Scanning electron microscopy,energy-dispersive X-ray spectroscopy and transmission electron microscopy results confirmed that Ag was asymmetrically distributed on the surface of polymer particles. This article presents a facile approach to preparation of polystyrene / silver (PS / Ag) asymmetric hybrid particles.In this method, polystyrene / polyglycidyl methacrylate (PS / PGMA) Janus particles were synthesized via internal phase separation triggered by evaporation of dichloromethane from PS / PGMA / DCMin water emulsion droplets. Chen, the Janus particles were aminated and sequentially carboxylated to obtain PS / PCMA-NHO_2 and PS / PCMA-COOH particles. Ag * self-assembled on the surface of PGMA hemisphere of the functionalized PS / PCMA particles by coordinating with amine / carboxyl.PS / Ag asymmetric hybrid particles with 7.29 wt% of Ag were obtained by reduction of Ag ~ +. Scanning electron microscopy, energy-dispersive X-ray spectroscopy and transmission electron microscopy results confirmed that Ag was asymmetrically distributed on the surface of polymer particles.