2D　ternary　transition　metal　dichalcogenides　(TMDCs)　have　been　studied　widely　by　researchers　from　the　fields　of　nanotechnology　to　materials　science　because　of　the　extraordinary　chemical/physical　characteristics,　and　significant　potential　in　nanoscale　device　applications.　Here,　the　application　of　NbxRe(1−x)S2　nanosheets　in　ultrafast　photonics　is　studied.　The　few-layer　NbxRe(1−x)S2　nanosheets　are　fabricated　through　liquid　phase　exfoliation　method　and　a　NbxRe(1−x)S2-microfiber　device　is　constructed　by　depositing　these　nanosheets　onto　the　tapered　region　of　a　microfiber.　After　incorporating　the　NbxRe(1−x)S2-microfiber　saturable　absorber　(SA)　into　a　net　positive　dispersion　Er-doped　fiber　(EDF)　laser　cavity,　the　generation　of　stable　dissipative　soliton　pulses　with　a　pulse　duration　of　1.03 ps　proved　as　polarization-locked　vector　solitons　upon　further　study.　With　pump　power　growing　to　900 mW,　the　average　output　power　increases　to　116.9 mW　without　pulse　splitting.　Besides,　the　pulse　width　can　be　compressed　to　149.6　fs　outside　the　cavity　by　using　a　single-mode　fiber.　Compared　with　previous　works　based　on　2D　materials-based　saturable　absorbers,　the　NbxRe(1−x)S2-based　mode-locked　fiber　laser　proposed　herein,　reveals　superior　comprehensive　performance.　©　2021　Wiley-VCH　GmbH