The　high-speed　pneumatic　on/off　valve　is　one　of　the　critical　components　in　pneumatic　systems,　which　has　been　widely　investigated　in　the　last　decades.　In　this　research,　a　new　voice　coil　motor　direct　drive　high-speed　pneumatic　on/off　valve　(VCM-DHPV)　is　proposed,　and　the　mathematical　model　of　VCM-DHPV,　which　consists　of　the　fluid　subsystem　and　electro-mechanical　subsystem,　is　established.　In　addition,　the　key　structural　parameters　of　VCM-DHPV　are　optimized　through　the　simulation　analysis　to　improve　its　dynamic　performance.　The　experiment　results　show　that　the　developed　VCM-DHPV　has　a　good　sealing　performance　by　adopting　the　face-seal　type　in　the　valve　port,　and　a　large　flow　rate　up　to　5500　L/min,　and　its　opening　response　time　is　8.2　ms　under　the　gas　supply　pressure　of　8　MPa　and　exiting　voltage　of　240　V.　With　the　supply　pressure　and　the　exciting　voltage　rising,　the　opening　response　time　of　VCM-DHPV　is　gradually　increasing,　and　the　variation　tendency　of　the　spool　displacement　curves　is　in　accordance　with　the　simulation　results.　This　research　will　have　significantly　effects　on　raising　the　performance　of　the　high-speed　pneumatic　on/off　valve　and　the　development　of　pneumatic　precision　motion　control.