The　research　progress　of　fuel　cell　air　compressors　for　vehicles　was　reviewed　from　the　aspects　of　Performance　requirements　and　technology　Status.　The　technologies　of　key　components　Parameter　optimization　design,　electromechanical　coupling　control,　manufacturing　and　Performance　testing　of　centrifugal　air　compressors　were　summarized.　The　future　development　directions　of　fuel　cell　air　compressor　technologies　were　prospected.　Research　results　show　that　fuel　cell　air　compressors　need　to　meet　the　requirements　of　large　flow　rate　and　fast　response.　At　present,　the　flow　and　pressure　characteristics　of　the　two-stagc　centrifugal　air　compressor　can　meet　the　oxygen　supply　requirements　of　the　5-350　kW　fucl　cell　System.　The　maximum　speed　of　the　compressor　can　reach　1.　0X　10　r　•　min-1,　and　the　response　time　from　zero　speed　to　idle　speed　is　seconds.　The　parameters　of　key　components　such　as　impcllcr,　diffuser　and　foil　gas　dynamic　pressure　bearing　can　bc　designed　by　optimization　algorithm　to　improve　the　aerodynamic　Performance　of　air　compressor.　In　order　to　reduec　the　speed　and　torque　fluetuation　of　drive　motor,　current　loop　decoupling　control　and　sensorless　control　can　bc　used　in　the　electromechanical　coupling　control　of　centrifugal　air　compressor　to　improve　the　dynamic　response　ability　of　the　compressor.　In　Order　to　ensure　the　aerodynamic　Performance　and　System　stability　of　centrifugal　air　compressor　in　high-speed　Operation,　high-precision　ternary　impcllcr　machining　is　mainly　realized　by　milling　with　five-axis　Computer　numerical　control　machinc　tool,　and　the　coating　of　foil　gas　dynamic　pressure　bearing　usually　adopts　solid　lubrication　and　plasma　injeetion　technology.　In　order　to　comprehensively　evaluate　the　Performance　of　fucl　cell　air　compressors,　it　also　need　to　carry　out　characteristic　test　such　as　flow,　pressure　ratio　and　efficiency　and　durability　indicator　test　such　as　start-stop　and　lifc.　At　present,　the　test　Standards　and　methods　of　air　compressor　aerodynamic　Performance　are　relatively　complete,　but　the　test　and　evaluation　methods　related　to　durability　need　to　bc　further　improved.　In　the　future,　with　the　growing　demand　for　sustainable　transportation　Solutions,　fuel　cell　air　compressor　technologics　for　vehicles　will　bc　developed　in　lightweight　and　intelligent　direction.　©　2025　Chang＇an　University.　All　rights　reserved.