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with airborne LiDAR data. Based on the objective of this study, some suggests and results related with Unmanned Aerial Vehicle, UAV different platforms and equipment selection, and the mission planning is thus discussed accordingly. Unmanned Aerial Vehicle, UAV UAV 20cm Abstract In recent years, unmanned aerial vehicle (UAV) become a popular technology, and is very useful for natural disaster assessment and hazard mitigation study. However the data quality is still a debated issue. This study is thus focus on the feasibility and adaptability analysis of the UAV techniques and its’ applications. We compare the quality evaluation of DTM from these two kinds of UAV (fixed wing and the rotor wings). Different factors are also evaluated in this study, including UAV platform, digital cameras, different sets of GCP groups, by comparing the DTM quality that UAV applying in the same area based on the airborne LiDAR