Ocean　heat　content　(OHC)　evolutions　calculated　from　the　data　sets　(WOA,　MyOcean,　ORAS4,　and　SODA)　were　examined　at　different　depth　ranges　in　this　study.　According　to　the　OHC　changes,　the　subsurface　and　deeper　ocean　(SDO,　300-2000　m)　heat　content　rapidly　increased　over　the　world＇s　ocean　basins　during　1998-2013,　indicating　significant　warming　in　the　SDO　during　the　recent　global　surface　warming　hiatus.　Almost　all　the　ocean　basins　warmed　up,　but　with　various　contributions　to　the　global　SDO　warming　tied　to　the　recent　hiatus.　The　role　of　the　Indian　Ocean　is　particularly　important　as　it　has　accounted　for　about　30%　of　global　SDO　heat　uptake　during　the　hiatus.　The　combined　use　of　multiple　data　sets　can　reveal　inconsistencies　in　SDO　warming　analysis　results,　and　improve　our　understanding　of　the　role　of　the　SDO　in　the　recent　hiatus.　The　heat　uptake　in　global　SDO　during　the　hiatus　was　about　2.37,　5.44,　3.75,　and　2.44　x　10(22)　joules　with　trends　of　0.40,　0.70,　0.77,　and　0.48　W　m(-2)　according　to　WOA,　MyOcean,　ORAS4,　and　SODA　respectively,　presenting　obviously　inconsistent　SDO　warming　signals.　MyOcean　shows　OHC　overestimates　in　different　ocean　basins,　while　ORAS4　presents　more　reliable　SDO　OHC　analysis.　In　general,　the　global　SDO　has　sequestered　a　significant　amount　of　heatabout　3.50　x　10(22)　joules　with　trends　of　0.59　W　m(-2)　on　average　among　the　four　data　setsduring　the　recent　hiatus,　demonstrating　widespread　and　significant　warming　signals　in　the　global　SDO.　There　remain　substantial　uncertainties　and　discrepancies,　however　(especially　in　the　PO　and　SO),　in　the　available　SDO　warming　information　due　to　insufficient　subsurface　observation　coverage　and　variations　in　the　data　set　generation　techniques　used　among　different　researchers.