Environmental responsive polymers,which can responded the infinitesimal change of temperature,pH value,magnetic field and light in the external environment,are used as carrier material to realize the controlled release of drugs according to alter function target and environmental selectivity.It has been concerned by researchers in the fields of medicine and pesticide.The temperature,pH,light,magnetic and compound type responsive polymer as carrier material applied in the field of drug-loaded microspheres preparation were summarized.The preparation and response mechanism of drug-loaded microsph...