The　Lifang　barite　deposit　in　Fujian　province　is　a　large-scale　independent　barite　deposit　discovered　in　the　southeastern　coastal　areas　in　China.　It　plays　an　important　role　in　the　sedimentary　barite　deposits　with　a　more　than　thirty　years　mining　history,　although　its　genesis　and　mineralization　epoch　are　still　disputed.　This　paper　undertook　investigation　of　ore　structure,　electron　microprobe　analyses　and　fluid　inclusion　temperature　measurement　for　barite　from　the　Lifang　barite　deposit　in　Fujian　province.　The　following　findings　and　cognition　are　obtained:　The　hydrothermal　exhalative　channel　phases　such　as　tube　structures,　breccia　structures　and　honeycomb　structures　in　barite　ore　were　found　for　the　first　time.　The　hyalophane　mineral　in　barite　ore　with　indicative　feature　of　hydrothermal　sedimentary　genesis　was　found　for　the　first　time.　140　fluid　inclusions　data　yielded　the　homogenization　temperature　of　fluid　inclusion　ranging　from　89.3　to　208.5,　with　an　average　of　162.7,　indicating　that　the　Lifang　barite　deposit　belongs　to　a　low　temperature　hydrothermal　sedimentary　deposit.　Based　on　evidence　such　as　ore　structure,　mineralogy　and　fluid　inclusion　temperature　measurement,　this　proposed　a　new　cognition　that　the　Lifang　barite　deposit　is　a　＇white　chimney＇　hydrothermal　sedimentary　deposit.　This　understanding　provides　new　important　information　for　the　study　and　prospecting　exploration　for　the　early　Paleozoic　hydrothermal　deposits　in　South　China.　©　2019,　Science　Press.　All　right　reserved.