Precision medicine is an important development direction of modern biomedicine, and the emergence of micro/nanorobots has promoted the development of precision medicine. These miniaturized robots are manufactured through self-assembly, electron beam deposition, and 3D printing, and they can initiate chemical reactions or move under the action of external fields such as ultrasound, light, magnetic and microorganisms (cells). They are widely used in biomedicine, they can load drug particles, biological reagents and living cells to achieve precise cargo delivery; perform operation and treat diseases as a small sized surgical tool; detect metal ions and other substances in organisms for early diagnosis of diseases; conduct medical imaging through different methods such as photoacoustic, magnetic resonance. In the past ten years, the research of micro/nano robots has made some progress in these areas, vigorously promoting the development of modern medicine.