The　ignition　delay　times　of　2,　5-Dihydrofuran　(25DHF)　were　measured　behind　reflected　shock　waves　at　the　pressures　of　4,　10atm,　temperatures　of　1110-1650　K,　for　the　lean　(φ=　0.5)　and　stoichiometric　(φ=　1.0)　mixtures　with　fixed　fuel　concentration　of　0.5%.　The　correlations　of　ignition　delay　times　to　initial　parameters　were　fitted　in　an　Arrhenius-like　form　for　the　two　fuels　by　multiregression　analysis.　Simulations　based　on　Liu　model,　Somers　model　and　Tran　model　were　presented　and　compared　to　experiment　data.　Subsequently,　reaction　pathway　and　sensitivity　analysis　were　performed　in　low　and　high　temperature　to　obtain　insight　into　the　ignition　kinetic　by　using　Liu　model.　Reaction　path　analysis　shows　that　there　are　two　main　ways　in　the　consumption　of　25DHF　and　the　main　intermediates　are　C3H5Y,　sC3H5and　propylene　etc.　Some　reactions　which　involved　the　main　intermediate　products　presented　important　effect　on　the　whole　ignition　of　25DHF.　The　comparisons　to　furan　and　MTHF　on　ignition　delay　time　data　were　also　conducted.　The　ignition　delay　times　of　25DHF　were　shorter　than　that　of　furan　and　the　slopes　of　ignition　delay　times　of　25DHF　were　smaller　than　that　of　furan　and　MTHF,　proving　lower　activation　energy.　Copyright　©　2016　SAE　International.