Compatibility　between　the　electrode　and　sulfide　solid　electrolyte　has　been　a　key　challenge　for　the　development　of　all-solid-state　lithium-ion　battery.　Herein,　controlled　interface　engineering　strategy　is　proposed　to　stabilize　the　cycling　performance　by　the　shrinkage　of　SnS　for　the　first　time.　Interestingly,　it　was　found　that　the　concentration　of　S-defects　can　be　controlled　during　the　SnS　shrinkage　in　the　carbon　matrix　enabled　by　the　carbon　thermal　reduction.　When　applied　in　an　all-solid-state　battery,　a　superior　electrochemical　performance　for　the　1-SnS-600　sample　was　achieved,　delivering　a　large　gravimetric　capacity　(720.4　mA　h　g−1　at　0.2　A　g−1　after　100　cycles).　Even　at　the　higher　current　densities　of　0.5　and　1　A　g−1,　the　1-SnS-600　electrode　in　all-solid-state　lithium　ion　batteries　(ASSLIBs)　can　deliver　high　discharge　capacities　of　509　and　410　mA　h　g−1　after　100　cycles,　respectively.　Importantly,　the　full　ASSLIB　cell　demonstrates　a　high　energy　density.　Additionally,　density　functional　theory　and　the　Arrhenius　equation　calculations　show　that　the　1-SnS-600　electrode　provides　the　lowest　Li+　insertion　energy　(−1.26　eV)　and　the　lowest　activation　energy　of　23.27　kJ　mol−1,　respectively.　©　2021　Elsevier　B.V.