Gold nanoparticles (AuNPs) present many fascinating properties such as size-related electronic

magnetic and optical properties

and polymers have the properties of processability and stimulative responsibility. Nanocomposites of polymers and AuNPs have both the properties of AuNPs and polymers

so researches on the nanocomposites have aroused much interest over the past decade. In this paper we introduce briefly our researches on the self-assembly of AuNPs at oil-water interface and fabrication of polymer-AuNPs ordered structures. Following different research topics are presented: (1) synthesis and self-assembly of polystyrene with pendant AuNPs;(2) interface-directed self-assembly of AuNPs and preparation of colloidal particles with AuNPs on the surface;(3) preparation of micro-hydrogels with AuNPs as cross-linkers.