As　a　complementary　research　on　human　thermal　adaptation　in　air　conditioning　environment,　this　study　aimed　to　explore　human　physiological　thermal　responses　in　real　air　conditioning　environment　and　discuss　their　effects　on　air　conditioning　closing　behaviors.　For　this,　one　office　room,　equipped　with　one　split　air　conditioner,　was　selected　to　provide　real　air　conditioning　environment,　and　12　students　volunteered　to　be　subjects.20　field　surveys　about　human　thermal　responses　to　air　conditioning　environment　when　subjects　just　leave　a　non-air-conditioned　environment,　to　simulate　the　intermittent　running　of　air　conditioners　in　real　conditions,　were　conducted　in　this　office　room.　During　each　survey,　skin　temperatures　of　the　main　body　parts　were　measured;　and　human　thermal　sensations　were　recorded.　Additionally,　the　indoor　temperature　and　relative　humidity　were　measured.　The　results　showed　the　significant　variations　of　foot　skin　temperatures　and　their　great　effects　on　human　thermal　sensations　when　human　limbs　and　neck　were　almost　exposed　in　air　conditioning　environment.　In　response　to　this,　human　thermal　sensations　presented　the　＇step-down＇　trends　from　the　votes　of　＇thermal　neutrality＇　to　the　votes　of　＇cool＇　or　＇cold＇,　demonstrating　the　great　impacts　of　foot　skin　temperatures　on　human　thermal　sensation　votes.　Moreover,　foot　skin　temperatures　were　also　found　to　have　statistical　effects　on　human　thermal　acceptance　level　in　air　conditioning　environment　and　their　actions　to　turn　off　air　conditioners,　which　eventually　resulted　from　human　exposure　environments　and　their　thermal　history.　The　lower　the　indoor　temperature　in　air　conditioning　environment,　the　more　likely　subjects　to　turn　off　air　conditioner.　By　comparison,　the　correlations　of　human　thermal　sensation　votes　and　their　actions　to　turn　off　air　conditioners　with　skin　temperatures　of　the　other　body　parts　as　neck,　chest,　hand,　forearm　and　thigh,　as　well　as　heart　rate　and　blood　pressure　have　not　reached　statistical　significance.　©　2017,　Editorial　Department　of　Journal　of　Hunan　University.　All　right　reserved.