In　this　paper,　we　reported　the　design　and　numerical　simulation　of　multi　direction　jet　flow　generator　with　disc　shaped　multi　circular　airflow　channel.　Using　the　finite　element　analysis　method,　the　COMSOL　Multiphysics　software　was　used　to　calculate　the　airflow　field　distribution　and　motion　feature　inside　of　the　generator.　Calculation　and　results　indicated　that:　(1)　There　is　an　integrated,　steadily　cycled　and　directional　flow　inside　of　this　device.　(2)　This　generator　produced　four　directional　flow　comprising　two　perpendicular　pairs　of　flow　and　generated　four　orthometric　distributed　jet　flow　inside　of　sensing　chamber.　(3)　The　airflow　velocity　at　pump　chamber　nozzle　and　sensing　chamber　nozzle　are　20.84m/s,　12.52m/s,　respectively.　The　velocity　at　the　two　nozzles　are　much　higher　than　other　part　inside　of　the　channel.　The　mentioned　multi　direction　jet　flow　generator　can　be　used　in　multi　axis　jet　flow　inertia　sensor,　micro　fluid　system　and　lab-on-chip　and　so　on　studying　field.