In　seismic　wave　propagation,　the　high-frequency　component　and　low-frequency　component　have　different　attenuating　properties　with　propagating　distance,　especially　in　strong　attenuating　areas.　Many　time-frequency　analyzing　tools　are　used　to　extract　high-frequency　component　and　low-frequency　component　of　stacked　seismic　data　to　characterize　attenuation　quantitatively　or　qualitatively.　However,　the　stacking　operation　on　pre-stacked　seismic　data　would　affect　characterizing　precision　seriously.　In　order　to　improve　precision　and　robustness,　we　propose　a　qualitative　attenuation　estimating　method　for　pre-stack　seismic　data　with　the　help　of　continuous　wavelet　transform.　This　method　uses　continuous　wavelet　transform　to　extract　the　high-frequency　component　and　low-frequency　component　from　the　common　reflection　point　gather　data,　and　adopts　the　modified　best　matching　seismic　wavelet　as　mother　wavelet.　The　difference　between　low-frequency　component　and　high-frequency　component　is　used　to　reflect　seismic　attenuation　qualitatively.　The　summation　of　attenuation　along　offset　is　adopted　to　enhance　the　robustness　of　estimation,　while　the　amplitude　normalization　is　adopted　to　reduce　the　affection　of　amplitude.　The　proposed　method　is　applied　to　a　field　data　which　contains　901　CRP　gathers.　Two　wells　are　located　in　this　area.　The　results　show　that　the　proposed　method　obtains　a　seismic　attenuation　parameter　section　which　accords　with　drilling　results　very　well.　The　qualitative　seismic　attenuation　estimating　method　based　on　stacked　data　is　also　applied　to　a　field　data.　Compared　with　the　method　based　on　stacked　data,　the　proposed　method　has　better　anti-noise　ability　and　is　less　likely　to　be　affected　by　amplitude.