By　integrating　organic　parts　achieved　through　evolution　and　inorganic　parts　developed　by　human　civilisation,　the　cyborg　microrobot　is　rising　by　taking　advantage　of　the　high　flexibility,　outstanding　energy　efficiency,　extremely　exquisite　structure　in　the　natural　components　and　the　fine　upgradability,　nice　controllability　in　the　artefact　parts.　Compared　to　the　purely　synthetic　microrobots,　the　cyborg　microrobots,　due　to　the　exceptional　biocompatibility　and　biodegradability,　have　already　been　utilised　in　in　situ　diagnosis,　precise　therapy　and　other　biomedical　applications.　In　this　review,　through　a　thorough　summary　of　recent　advances　of　cyborg　microrobots,　the　authors　categorise　the　cyborg　microrobots　into　four　major　classes　according　to　the　configuration　between　biomaterials　and　artefact　materials,　i.e.　microrobots　integrated　inside　living　cell,　microrobots　modified　with　biological　debris,　microrobots　integrated　with　single　cell　and　microrobots　incorporated　with　multiple　cells.　Cyborg　microrobots　with　the　four　types　of　configurations　are　introduced　and　summarised　with　the　combination　approaches,　actuation　mechanisms,　applications　and　challenges　one　by　one.　Moreover,　they　conduct　a　comparison　among　the　four　different　cyborg　microrobots　to　guide　the　actuation　force　promotion,　locomotion　control　refinement　and　future　applications.　Finally,　conclusions　and　future　outlook　of　the　development　and　potential　applications　of　the　cyborg　microrobots　are　discussed.　©　The　Institution　of　Engineering　and　Technology　2019.