At present, there is still a lack of research on how to use the discovered conventional oil and gas reservoirs to predict undiscovered unconventional oil and gas reservoirs. In light of the positive accumulation correlation between conventional oil and gas reservoirs and unconventional ones in the source rock strata, this paper proposes a method for the favorable area prediction of unconventional oil and gas reservoirs in the correlated reservoir ranges based on reseach of the saguplift band distribution, fault activities, sand body distribution, oil and gas sources, and migration paths. First, the basic research on the correlation is conducted for an area in terms of the stratum structures in the sag-uplift band, sand body distribution in the source rock strata, oil and gas sources, and migration paths. Then, the distribution of discovered oil and gas reservoirs and their oil and gas sources are combined with the basic research results to comprehensively judge the correlation range. Finally, the favorable areas are predicted in the regions where no oil reservoirs are found in the correlation ranges. Here, the favorable areas are defined as those with the source rock development and favorable sandstones, sand-mud interbeds, and fractured mud-shale reservoirs. The following two conditions are the most favorable for oil and gas accumulations: there are the source rock strata oil and gas reservoirs superimposed or adjacent to each other in favorable areas；the favorable areas are adjacent to the faults，and the oil and gas reservoirs developed in the overburden strata with oil and gas derived from faults.