Tectonic transfer zone is an important component of the extensional tectonic system to balance deformation. Cuizhuang Transfer Zone is located in the middle of the western slope of Jinhu Sag. This paper studies the geological characteristics of Cuizhuang Transfer Zone, the relationship between it and hydrocarbon reservoirs and its division effect based on the analysis of the tectonic evolution history of the west slope, the distribution of faults and the sedimentary facies. It is shown that Cuizhuang Transfer Zone influences the provenances, the deposition of sand and the distribution of hydrocarbon reservoirs. It is the entrance of the lateral provenance and controls the distribution of the sand body. It is the boundary between the north and the south, where the structures and the sedimentary conditions are different. The sand in the transfer zone enjoys a good porosity and permeability. The transfer zone is a favorable zone for the accumulation of oil and gas. The transfer zone in the western slope acts as oil and gas reservoirs and the channel for oil and gas migrations. Cuizhuang Transfer Zone is one of the important factors to control hydrocarbon reservoirs of Funing Group in the western slope.