Taiwan is located at the boundary of Eurasian Plate and Philippine Sea Plate, fractured geological fragmentation caused by more geologic structures the frequent earthquakes induced many debris flow hazards. Debris flow torrent could be classified into two types, channelized and hillslope debris flow. Many studies have been focused on hillslope debris flows in recent years, many descriptions of the geomorphology characteristics were discussed, although the quantitative analysis and the distinguish criterion on two types of debris flow were lacked. This study attempts to establish the criteria for the interpretation of channelized and hillslope debris flows, and to explore the differences of the two in the topographic characteristics.