In　recent　years,　magnetic　microand　nanorobots　have　been　developed　and　extensively　used　in　many　fields.　Actuated　by　magnetic　fields,　microand　nanorobots　can　achieve　controllable　motion,　targeted　transportation　of　cargo,　and　energy　transmission.　The　proper　use　of　magnetic　fields　is　essential　for　the　further　research　and　development　of　microand　nanorobotics.　In　this　article,　recent　progress　in　magnetic　applications　in　the　field　of　microand　nanorobots　is　reviewed.　First,　the　achievements　of　manufacturing　microand　nanorobots　by　incorporating　different　magnetic　nanoparticles,　such　as　diamagnetic,　paramagnetic,　and　ferromagnetic　materials,　are　discussed　in　detail,　highlighting　the　importance　of　a　rational　use　of　magnetic　materials.　Then　the　innovative　breakthroughs　of　using　different　magnetoelectric　devices　and　magnetic　drive　structures　to　improve　the　microand　nanorobots　are　reviewed.　Finally,　based　on　the　biofriendliness　and　the　precise　and　stable　performance　of　magnetic　microand　nanorobots　in　microbial　environments,　some　future　challenges　are　outlined,　and　the　prospects　of　magnetic　applications　for　microand　nanorobots　are　presented.