毫微粒作为药物载体具有许多优点，现已成为药剂学界研究的前沿热点之一。本文以三种常见的可生物降解聚合材料为例，综述了毫微粒的制备方法，同时介绍了毫微粒载体在靶向释药、性能改善方面的最新研究成果 Nanoparticles as a drug carrier has many advantages and has become one of the frontier hotspots in the field of pharmacy research. In this paper, three kinds of common biodegradable polymeric materials, for example, reviewed the preparation of nanoparticles, and introduced the nano-particle carrier in the targeted release, the performance improvement of the latest research results