It　will　play　a　more　and　more　important　role　in　the　air　pollution　emergency　to　apply　mobile　device　and　system　to　display　the　disaster　information.　The　air　pollution　simulation　disaster　condition,　such　as　pollution　concentration,　casualty　probability,　is　stored　as　a　text　type,　and　is　very　difficult　to　be　visualtized　on　mobile　terminal.　GeoJ-SON　is　an　open　standard　format　for　encoding　collections　of　simple　geographical　features,　which　may　provide　a　solution　for　mobile　data　visualization.　Firstly,　the　expression　format　of　the　air　pollution　disaster　condition　were　given　based　on　the　analysis　of　the　GeoJSON.　Then　a　GeoJSON-based　mobile　visualization　flow　and　method　for　emergency　air　pollution　simulation　disaster　condition　were　put　forward.　In　the　end,　the　visualization　of　air　pollution　disaster　condition　on　the　mobile　terminal　are　implemented,　and　the　visualization　efficiency　was　analyzed.