This　paper　is　based　on　natural　disaster　forecast.　In　this　paper　we　describe　our　ongoing　work,　where　we　abstract　the　system　process　of　common　IGDSS　for　disaster　forecast,　research　on　the　design　and　the　realization　of　IGDSS　in　pervasive　computing,　especially　its　architecture　and　how　to　integrate　MAS　into　the　development.　The　organization　of　agent　platform　is　also　presented.　The　idea　of　using　JADE-LEAP　framework　to　implement　Agent-based　IGDSS　in　pervasive　computing　is　proposed　too.　Finally　we　implemented　a　prototype　and　analyzed　the　experimental　result.