A drug delivery system of a target drug and method of implementing the same. Said drug delivery system of target drug comprising: a plurality of drug-carrying magnetic particles, a magnetic field generation device, and an ultrasound generation device. Said magnetic field generation device generates a magnetic field to guide said magnetic particles to a target activity position and said ultrasound generation device generates ultrasound to make said magnetic particles into a suspension state, thus increasing reaction area, enhancing local reaction of drug, such that local retention of drug is able to achieve maximum therapeutic effects at reduced drug dosage.本發明提供一種標靶藥物之投藥系統及其操作方法。本發明之標靶藥物之投藥系統包含有數個作為藥物載體的磁性粒子;以及一磁場產生裝置與一超音波裝置,磁場產生裝置產生一磁場,以導引磁性粒子至一標的作用位置,超音波裝置使磁性粒子呈現懸浮狀態,以增加反應面積,促進局部藥物的反應性,使藥物於局部滯留時可以達到在較少劑量的藥物下發揮最大的治療效果。20‧‧‧標靶藥物之投藥系統22‧‧‧磁性粒子24‧‧‧磁場產生裝置26‧‧‧超音波產生裝置28‧‧‧血管32‧‧‧介質34‧‧‧訊號產生器36‧‧‧觸發電路晶片38‧‧‧超音波驅動器39‧‧‧超音波換能器40‧‧‧探頭
