The invention discloses a hydrocracking method of low-sulfur raw materials. The hydrocracking method includes: (1) subjecting the low-sulfur raw materials in a hydrocracking device to hydrodesulfurization, denitrification, aromatic saturation and a hydrocracking reaction, and feeding reaction effluents into a heat-exchanging separating system comprising a high-pressure air cooler, wherein the material entering the high-pressure air cooler is firstly mixed with washing water; (2) subjecting effluents of the high-pressure air cooler to gas-oil-water three-phase separation in a high-pressure separator; (3) recycling the gas phase separated by the high-pressure separator, feeding the separated oil phase into a low-pressure separator and feeding the water phase into an acid water stripping tower to be processed; and (4) adopting water dissolved with the hydrogen sulfide as the washing water in the step (1). Compared with the prior art, the hydrocracking method can save the cost and create large profit for the enterprises. The hydrocracking method is mainly suitable for hydrocracking processes which adopt various types of low-sulfur distillate oil as raw materials and produce high-quality petroleum products.