Traditional　refrigerant-absorbent　pairs,　such　as　H2O/LiBr　or　NH3/H2O　used　in　the　absorption　refrigeration　system,　have　some　drawbacks,　and　some　of　the　mixtures　including　ionic　liquids　are　considered　as　promising　alternative　working　pairs.　The　performance　of　the　single-effect　absorption　refrigeration　system　using　R1234ze(E)/[Bmim][PF6],　R1234ze(E)/[Hmim][PF6],　or　R1234ze(E)/[Omim][PF6]　as　the　working　pair　was　investigated　in　the　present　work.　Firstly,　the　NRTL　activity　coefficient　model　was　used　to　correlate　the　experimental　vapor-liquid　equilibrium　data,　and　the　thermodynamic　models　of　the　absorption　cycles　were　also　established.　In　addition,　the　circulation　ratio,　mass　concentration　difference　between　strong　and　weak　solutions,　coefficient　of　performance　and　exergy　coefficient　of　the　cycle　were　analyzed　at　different　generation　temperatures,　evaporation　temperatures　and　condensation　temperatures.　At　last,　the　performances　of　the　refrigeration　system　based　on　R1234ze(E)　with　other　ionic　liquids　(including　[Hmim][Tf2N],　[Omim][BF4],　[Hmim][BF4]　and　[Emim][BF4])　reported　in　the　literatures　are　compared　with　the　results　of　this　work.　The　results　show　that　when　the　condensation　temperature　is　30,　the　maximum　coefficient　of　performance　and　the　maximum　exergy　coefficient　of　the　cycle　can　be　attained　at　the　generation　temperatures　of　70　and　65,　respectively.　And　at　this　condition,　the　R1234ze(E)/[Omim][PF6]　pair　has　the　highest　coefficient　of　performance　of　0.21,　and　the　exergy　coefficient　is　0.089.　The　R1234ze(E)/[Hmim][Tf2N]　pair　has　the　highest　performance,　but　that　for　R1234ze(E)/[Emim][BF4]　is　the　lowest.　This　study　may　provide　useful　information　for　the　application　of　new　working　pairs　to　the　absorption　refrigeration　systems.　©　2019,　Editorial　Office　of　Journal　of　Xi＇an　Jiaotong　University.　All　right　reserved.