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The phenomenon of soil adhesion occurred widely when conventional press roller worked. To solve the problem, nine biomimetic press rollers with bionically ridged structures were designed learning from the geometric structure of the ventral surface of dung beetle (Copris ochus Motschulsky). Bionically ridged structures using ultra high molecular weight polyethylene material, which possessed good hydrophobic properties, were modeled on the surfaces of press rollers. Orthogonal tests of L9(34) were performed in an indoor soil bin with a moisture content (dry basis) of 20%. The effects of the bottom width of ridge section (W), ridge height to width ratio (R), roller loads (F) and the area ratio (K) on soil adhesion and traction resistance were determined. The results showed that under the identical conditions, all bionic rollers exhibited lower adhesion than a conventional roller against soil in a suitable compaction for corn, and the maximal adhesion reduction rate was 41.08%. The bionic roller with ridged structure with reasonable dimensions could reduce the traction force by 11.75%~39.40% than conventional roller. The order and optimal levels of the experiment factors influencing soil adhesion and resistance were determined by range method. The impact of the different factors on the soil adhesion and resistance of press roller was discussed.