Transition　metal　sulfide　with　high　electrical　conductivity　and　thermal　stability　has　been　considered　as　a　promising　anode　candidate　for　rechargeable　batteries.　Among　them,　1T-MoS2　nanosheet　with　a　honeycomb　structure　like　graphene,　has　attracted　increasing　attention　recently　due　to　its　excellent　electrochemical　performance.　In　this　paper,　the　density　functional　theory　calculations　have　been　employed　to　investigate　and　compare　the　interaction　of　Li,　Na,　K,　Mg,　and　Al　with　the　1T-MoS2　monolayer,　including　the　geometry　configurations,　electronic　structures,　ions　diffusion　properties,　open-circuit　voltages,　and　specific　theoretical　capacities.　All　metal　atoms　adsorbed　on　1T-MoS2　monolayer　with　negative　adsorption　energies,　indicating　strong　binding　between　metals　and　1T-MoS2　monolayer　and　in　favor　of　battery　application.　The　diffusion　barriers　of　all　metal　ions　are　less　than　0.2　eV,　indicating　good　charge–discharge　rates.　The　OCV　range　of　1T-MoS2　as　Li-ion,　Na-ion　and　Mg-ion　batteries　anodes　is　around　0.2　∼　0.8　V,　and　the　specific　capacities　are　1172,　335,　and　670　mAh/g,　respectively.　Our　results　indicate　that　the　high　capacity,　low　open-circuit　voltage,　and　ultrahigh　ion　diffusion　kinetics　make　the　1T-MoS2　an　excellent　candidate　as　anode　material　for　Li-ion　batteries,　Na-ion　batteries　and　Mg-ion　batteries.　©　2022　Elsevier　B.V.