Research　status　of　state　monitoring　technology　for　air　compressor　and　existing　problems　were　analyzed,　meanwhile,　the　necessity　of　designing　a　remote　monitoring　system　was　discussed　in　the　paper.　On　the　basis　of　analyzing　the　air　compressor＇s　working　principle,　a　remote　monitoring　system　for　air　compressors　was　constructed　by　King-view　configuration　software,　according　to　the　technology　of　Ethernet　and　computer　communication.　With　this　system,　real-time　remote　monitoring　of　compressors＇　state　and　related　operation　parameters　was　realized;　in　addition,　the　latent　faults　of　compressors　on　working　could　be　predicted　and　warned.　And　that　the　efficiency　of　air　compressors　is　improved,　and　the　accidents　of　air　compressors　are　avoided　efficiently.　©　(2012)　Trans　Tech　Publications,　Switzerland.