The invention relates to a preparing method of a sulfur-tolerant type arene saturation hydrogenation catalyst. The method includes preparing a precious metal into precious metal impregnation solutions with deionized water or an acid solution and impregnating a carrier with the impregnation solutions through an equivalent-volume impregnation process according to an order that concentrations of the impregnation solutions gradually decrease; or preparing a high-concentration precious metal impregnation solution and impregnating the carrier in a manner that the concentration of the active metal impregnation solution is gradually reduced; homogenizing; drying; and calcinating to obtain the catalyst. The catalyst is mainly used for treating low-sulfur high-arene light distillate, middle distillate, atmospheric pressure wax oil and vacuum gas oil. The method is advantageous in that the catalyst is good in hydrofining performance and excellent in arene saturation performance, a product liquid is high in yield, the catalyst is high in desulfurization performance and sulfur tolerance, using effects of the catalyst are obvious and the application prospect is wide.