Surface texture and diamond-like carbon (DLC) coatings, as critical technologies in surface engineering, demonstrate significant potential for enhancing the tribological performance of materials. This study employs a combined laser surface texturing and filtered arc vacuum coating technology (DCVA) to create a bionic snake scale micro-textures/DLC coating composite system on SUS304 stainless steel. Experimental results demonstrate that the composite surfaces with rectangular and rhombic textures exhibit a low average coefficient of friction (COF) of 0.16 with excellent stability. Wear debris forms a dynamic accumulation along the texture edges, filling gaps through microstructural guidance and thereby effectively reducing fluctuations in surface roughness. The geometric features of the bionic micro-textures optimize the wear mechanism by regulating stress distribution, lubrication paths, and wear debris transport. The DLC coating undergoes graphitization transformation during the friction process, which effectively reduces the friction coefficient. This approach achieves an optimal balance between friction reduction and wear resistance.