A nanoimprint lithography method of fabricating a nanoadhesive includes steps of (a) preparing a substrate and a transfer stamp, said transfer stamp having a transfer face and nanometer-scale features formed on said transfer face, said nanometer-scale features having a plurality of convexities and concavities, said substrate having an etched layer; (b) proceeding a staining process to enable either of said convexities and concavities to be stained with a photoresist; (c) proceeding a transfer process to enable said nanometer-scale features to touch said etched layer to transfer said photoresist onto said etched layer; and (d) proceeding an etching process to enable parts of said etched layer that are not stained with the photoresist to be each etched for a predetermined depth. As the steps indicated above, the nanoadhesive can be produced with mass production and low cost.