It　has　been　recently　demonstrated　that　the　superlubricity　behavior　of　polyalkylene　glycol　(PAG)　aqueous　solutions　can　be　achieved　in　a　wide　variety　of　applied　conditions.　However,　certain　parameters　are　expected　to　be　adjusted　further　to　achieve　a　more　controllable　superlubricity　system.　Herein,　it　is　demonstrated　that　an　ultralow　friction　coefficient　can　be　obtained　by　concentrated　PAG　aqueous　solutions　(80　wt%　HB-260)　as　the　contact　pressure　becomes　relatively　low　(37　MPa).　Meanwhile,　the　superlubricity　state　can　be　adjusted　in　a　timely　manner　by　adjusting　the　relative　sliding　speed.　Here,　the　viscosity　of　the　PAG　aqueous　solution　(determined　by　its　concentration　and　molecular　weight)　and　applied　conditions,　including　contact　pressure　and　relative　sliding　speed,　are　considered　as　critical　parameters　influencing　the　lubricating　performance.　According　to　the　theoretical　analysis,　the　superlubricity　state　is　confirmed　and　a　fitted　superlubricity　region　is　proposed,　which　provides　a　comprehensive　guide　for　achieving　controllable　superlubricity　in　the　future.