A　wave　rotor　is　a　pressure　exchanger,　which　utilizes　direct　pressure　transfer　between　fluids　by　pressure　waves.　It　has　been　applied　on　a　gas　turbine　or　internal　combustion　engine.　This　paper　investigates　the　performance　of　a　through-flow　(TF)　wave　rotor　based　on　a　test　rig.　The　test　rig　includes　a　Comprex　CX93　rotor　together　with　redesigned　casings.　The　experiment　is　completed　based　on　different　operating　conditions　such　as　varied　speed,　temperature,　and　pressure.　Results　show　that　the　higher　pressure　and　temperature　of　the　inlet　of　the　wave　rotor　causes　better　performance,　the　optimization　rotational　speed　of　the　TF　wave　rotor　is　about　13000　r/min.　The　designed　TF　wave　rotor　structure　is　reasonable　and　it　produces　high-pressure　compressed　air.　The　maximum　compression　pressure　ratio　is　up　to　2.0.