Scientists have invented microrobots that can directly reach the site of disease to perform medical tasks. Microrobots-assisted in vivo drug delivery, release, and in situ surgery are therefore seen as very promising medical solutions. Microrobots, acting as the carriers, can efficiently deliver drugs for tumor treatment, and they can also even culture and transport cells in vivo for tissue engineering. Over the past decades, actuation and control have been the focus of the microrobots’ research. Under the optical[5,6], magnetic[7,8], chemical[9,10], and biological fields, microrobots have already been able to achieve a variety of effective movement for in vitro or in vivo environments. In recent years, more researchers are focusing on how microrobots can be truly applied for clinical therapy. Many in vivo experiments on small animals have also been carried out to validate and advance the in vivo application of the microrobots[13–16].