Slope channel complex is one of the most important sedimentary architecture elements in Pliocene in Rakhine Basin, offshore Myanmar. This study is carried out under the guidance of the relationship between the seismic response and deepwater reservoir. The strong amplitude attributes on 2D and 3D seismic data are applied to deduce coarse sediment existing in slope channel complexes. Technologies that include coherence slice analysis, geoanomaly processing and 3D visualization are used for distinguishing slope channel complexes from background. Detailed descriptions, involving the external geometric shape, the nature of internal fill and reservoir characters are executed. Three kinds of slope channel complexes have been observed and identified based on the 3D seismic data. Multiple phase aggradational confined channel complexes have been detected in Pliocene in Rakhine Basin. Several large sand bodies, ranging from 7 km to 16 km in the down-current direction and usually no more than 10 km in width, have been identified.