Wrinkles are common and easy to observe in nature. They appear on different scales, from mountain ranges to skin. The formation of wrinkles is mainly due to stress imbalances caused by differences in hardness between upper and lower layers. Mountain folds and fine lines on the skin come about due to a shared phenomenon. In the soft lower mantle or dermis, stress results from fluidity and material loss, which acts on the upper layer of hard crust or epidermis to produce wrinkles. When wrinkles reach the order of microns or nanometers, surface and contact areas increase to achieve adsorption effect, such as fingerprints left on objects or geckos climbing walls. Therefore, wrinkled surfaces have a high potential for application due to their adsorptive and adhesive properties. To produce a small-scale wrinkled structure based on bionic design methods, two polymer materials (PDMS/PLLA) of different hardness were used. The surface was scanned and photographed with laser scanning confocal microscope, to reveal spontaneous and highly-ordered folds on the order of microns. The color gradient is how the differences in the heights of the folds are displayed.