Thermal　cloaking　refers　to　the　phenomenon　that　an　external　heat　flux　can　bypass　a　thermal　cloaking　device　without　affecting　objects　within　the　cloaking　region　of　the　device　and　the　heat　flux　outside　the　cloak.　A　bilayer　structure　by　using　bulk　materials　with　an　inner　layer　of　very　low　thermal　conductivity　(TC)　and　an　outer　layer　of　higher　TC　can　serve　as　a　thermal　cloak　model　with　excellent　cloaking　effect.　Usually,　materials　with　temperaturedependent　thermal　conductivity　are　prevalent　in　nature.　However,　previous　studies　have　not　thoroughly　examined　the　impact　of　temperature　on　thermal　conductivity　(TC).　Therefore,　it　is　crucial　to　consider　the　thermal　conductivity＇s　temperature　dependence　when　designing　thermal　cloaks.　In　this　paper,　we　propose　two　types　of　switchable　bilayer　thermal　cloaks　based　on　materials　with　different　types　of　temperature-dependent　thermal　conductivity　(TDTC),　by　which　the　cloaking　effect　could　be　in　the　off　or　on　state　in　response　to　varying　temperature.　The　cloaking　performance　of　the　switchable　cloak　is　demonstrated　based　on　numerical　simulations.