In　this　paper,　1:8　scale　model　experiments　and　numerical　simulations　were　performed　to　analyze　the　temperature　characteristics　of　flame　ceiling　jet　generated　by　a　fire　at　the　head　and　the　tail　of　a　train　in　a　subway　tunnel.　The　results　were　then　compared　with　those　at　the　train　center.　It　is　found　out　that,　if　the　fire　occurs　at　the　train　head　and　tail,　the　maximum　temperature　of　the　flame　ceiling　jet　appears　at　the　location　of　δ=0.25H　away　from　the　tunnel　roof,　while　it　appears　at　the　location　of　δ=0.18H　if　the　fire　occurs　at　the　train　center,　all　these　being　diffe-rent　from　that　of　the　gas　ceiling　jet　appearing　at　the　location　of　0.01H　away　from　the　tunnel　roof;　that　the　vertical　temperature　along　the　tunnel　changes　piecewise　under　a　stable　combustion　state,　so　the　maximum　temperature　at　the　fire　on　the　train　head　and　tail　reduces　parabolically,　while　that　at　the　fire　on　the　train　center　reduces　linearly;　and　that,　being　a　certain　distance　away　from　the　train,　the　flame　significantly　weakens,　and　the　maximum　temperature　of　the　flame　ceiling　jet　exhibits　an　exponential　decay.