With advantage of a great quantity of coring data and dense well pattern, this paper studies architecture of debouch bar according to order of superimposed debouch bar. Sedimentary scale of debouch bar is studied quantitatively. And writer proposed the quantitative analysis method of architecture of debouch bar. Writer suspected that there are 5 levels in architecture of debouch bar of this block. The 3rd and 4th level are the most important in the architecture studying. Length—thickness and length—width of debouch bar both are log—log type linearity. Attitude, expanded range and association of foreset body all obtain ambiguity. It is needed comprehensive research of pattern of architecture of debouch bar, core analysis, log comparison and developmental character when we analysis Attitude foreset, expanded range and association.