The　mining　and　processing　of　traditional　skeleton　materials　inevitably　generates　carbon　emissions　and　pollutes　the　surrounding　environment.　To　make　full　use　of　industrial　solid　waste,　this　work　innovatively　used　carbide　slag　as　skeleton　material　and　Na2CO3　as　phase　change　material　(PCM)　to　fabricate　shape-stable　phase　change　composites　(SSPCCs)　via　the　cold-compression　&　hot-sintering　method.　Seven　SSPCCs　were　fabricated　with　different　mass　ratios　of　carbide　slag　to　Na2CO3.　Then,　the　thermal　energy　storage　(TES)　performance,　mechanical　property,　micromorphology,　chemical　compatibility　as　well　as　thermal　cycling　stability　were　investigated.　The　results　showed　that　the　carbide　slag　could　combine　with　Na2CO3　to　fabricate　SSPCCs;　Sample　CN5　achieved　the　optimal　performance　with　the　mass　ratio　52.5:47.5　of　carbide　slag　to　Na2CO3;　Sample　CN5　achieved　a　TES　density　of　993　J/g　in　the　range　of　100　to　900　degrees　C,　a　compressive　strength　of　22.02　MPa　and　a　maximal　thermal　conductivity　of　0.62　W/(m　center　dot　K);　Both　carbide　slag　and　Na2CO3　were　distributed　uniformly　in　sample　CN5,　while　good　thermal　stability　after　the　100　heating/cooling　cycles　and　good　chemical　compatibility　between　the　carbide　slag　components　and　the　Na2CO3　were　observed.