As a new material

nanoparticles have shown unique application value in many fields. Polymeric nanoparticles are a branch of nanoparticles. In this paper

combined with the general introduction of nanoparticles

the preparation methods of polymer nanoparticles

the modification of bulk and surface properties

and the modification and regulation of the morphology structure of polymer nanoparticles are summarized. Finally

the important application value and broad application prospect of polymer nanoparticles in biomedical field are further illustrated by the research examples of polymer nanoparticles in recent years.