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: In recent years in Korea, Typhoon Rusa (2002), Typhoon Maemi (2003), and the localized extreme rainfall followed by Typhoon Ewiniar in 2006 devastated residential areas, roads, and agricultural lands in Gangwon province where 90% of the area is in mountainous regions. Most of the economic losses and casualties were concentrated in the area near the mountain valleys and creeks due to the floods and debris flows. In this study, DATABASE, which includes a total 180 debris flow events in the Gangwon area, was created by collecting the hazard records and field investigations of existing debris flow sites. Analysis results showed that the most of the debris flows in Gangwon province initiated from the small slope failure wit h relatively steep slope of 34.3°. And they flowed short distances about 420 m in gentle slope with the average angle of 18.1°. I n addition, rainfall condition was important for the triggering of debris flow not only at the day of debris flow but also extend ed period of rainfall before debris flow.Key words : debris flow, DATABASE, field investigation, rainfall threshold  :   2002  , 2003  , 2006       90%    , ,    .             .            180    .    ,       , 34.3°      18.1°     420 m       . ,               . : , , ,

Analysis of Debris Flow Type in Gangwon Province by Database Construction