As　a　rarely　observed　mineral,　roquesite　(CuInS2)　has　not　been　reported　in　China　yet.　During　the　investigation　of　the　mineral　assemblages　of　the　Zijinshan　epithermal　Cu-Au　deposit　at　the　depth,　the　authors　discovered　roquesite　through　electron　microprobe　analysis.　Its　chemical　composition　is　Cu1.01In0.91S2.00,　resembling　the　ideal　formula　Cu1.00In1.00S2.00　of　roquesite.　As　roquesite　is　usually　existent　in　the　mesothermal　to　hypothermal　ore-forming　system,　the　discovery　of　such　hypothermal　minerals　as　kiddcreekite,　hemusite,　mawsonite,　colusite,　stannoidite　and　molybdenite　in　the　deep　orebody　of　southeast　Zijinshan　Cu-Au　deposit　suggests　that　the　ore-forming　temperature　might　have　been　much　higher　at　the　depth　than　estimated　before.　The　authors　have　also　come　to　the　conclusion　that　the　content　of　In,　Sn,　Pb,　Zn,　Mo,　W　in　the　ore-forming　fluid　was　high.　It　can　also　be　inferred　that　there　probably　existed　a　porphyry-like　ore-forming　system　beneath　the　present　high　sulfidation-style　epithermal　Zijinshan　Cu-Au　deposit.