The type and distribute of the slope break zones control the depositional systems. Comprehensive analyses on the Paleogene sequence compositional types and sedimentary filling patterns. The research indicate: ① The affected by episodic rifting of the basin and differential subsidence of contemporaneous faults, two different structural slope break types,including fault slope break and flexure slope break.fault slope break include fault terrace slope break,“brush” slope break and structurally regulated zone. ② The fault terrace slope break controlled the formation and distribution of fan delta sedimentary system in steep slopes and belt braided river delta sedimentary system in gentle slopes,“brush” slope break control direction of lake and sedimentary thickness.structurally regulated zone controlled the sedimentary system of braided river delta and sublacustrine fan, flexure slope break controlled the braided river delta sedimentary system. ③ The tectonic slope break zones controlled different types of trap combination. The fault terrace slope break controlled the fault flock trap, lithological pinchot trap;structurally regulated zone controlled lithological pinchot trap, fault nose trap and lithological trap; flexure slope break controlled stratigraphic overlap trap.Different tectonic slope break with the development of different types of traps combination direction for the next step in deep oil and gas exploration.