Induced fractures，cataclastic rocks，or fault rocks will be formed during the active periods of faults connecting the source rocks and reservoirs，which play a transporting role in oil and gas migration. Affected by factors such as fault activity intensity，lithologies on both fault walls，and shale contents of fault rocks，different parts of faults（fault sections）have different transport capacities for fluids. Quantitative evaluation of fault transport differences is helpful for predicting favorable areas of fault-controlled tight oil and gas reservoirs. In this paper，parameters including the growth index of faults，fracturing ratios of faults，and rock fracturing pressure were used to develop a calculation method for the fault transport index，and the fault-controlled tight oil and gas accumulation mechanism and pattern were explicated. The source rock coefficient was calculated according to the thickness，maturity，and type of the source rock. In addition，a comprehensive analysis was performed on the transport index，source rock coefficient，pressure differences between source rock and reservoirs，and favorable reservoir facies belt for each section of Fault Boshen4 of Bonan Sag in Jiyang Depression. Then，a classification standard for favorable accumulation areas of fault-controlled tight oil and gas was constructed. The predicted favorable accumulation areas of fault-controlled tight oil and gas are consistent with the actual exploration results. The results reveal that the calculated fault transport indexes by section can quantitatively assess the differences in fault transport capacity and that the large pressure difference between source rock and reservoirs，fault transport difference，and lateral sealing of fault rocks are the main factors in the fault-controlled tight oil and gas accumulation.