The invention discloses a production process for producing white oil through an adsorption method. The process comprises the following steps: placing raw materials in a bleaching tower, adding an adsorbent to perform the adsorptive bleaching, namely the finished product white oil; performing washing, solid-liquid separation, drying on the used adsorbent, and then recycling the same; setting threelayers of adsorptive layers in the bleaching tower, wherein the adsorbent of the first adsorptive layer is the silica gel in 30-60 meshes, the adsorbent of the second adsorptive layer is silica gel in60-100 meshes and aluminum oxide, and the adsorbent of the third adsorptive layer is silica gel in 30-80 meshes, trisodium phosphate and aluminum hydroxide. The production process disclosed by the invention has the advantages that the process for producing the white oil through the adsorption method is high in waste oil recycling rate, and the adsorbent is recyclable.