In　this　paper,　a　new　evaporative　condenser　with　an　annular　elliptic　finned　tube　heat　exchanger　was　introduced　and　some　of　its　main　performance　parameters　were　simulated.　For　comparison,　the　actual　operating　parameters　of　the　round　finned　tube　evaporative　condensation　air　conditioning　system　using　in　a　subway　station　were　also　measured　and　simulated.　This　paper　provides　a　reference　for　related　researches　on　the　actual　operation　of　subway　stations.　Meanwhile,　the　heat　transfer　performance　of　the　annular　elliptic　finned　tube　heat　exchanger　was　compared　with　the　round　finned　tube　heat　exchanger　by　numerical　simulation.　The　results　showed　that　the　annular　elliptic　finned　tube　heat　exchanger　had　a　smaller　air　resistance　and　a　larger　heat　transfer　coefficient.　Besides,　the　new　annular　elliptic　finned　tube　proposed　in　this　paper　could　increase　the　COP　of　the　air　conditioning　system　by　roughly　5%　to　17%,　and　the　energy　consumption　is　reduced　by　about　8%　to　22%.　©　2019　International　Institute　of　Refrigeration.　All　rights　reserved.