Solar anti‐/deicing can solve icing problems by converting sunlight into heat. One of the biggest problems, which has long been plaguing the design of solar anti‐/deicing surfaces, is that photothermal materials are always lightproof and appear black, because of the mutual exclusiveness between generating heat and retaining transparency. Herein, a highly transparent and scalable solar anti‐/deicing surface is reported, which enables the coated glass to exhibit high transparency (>77% transmittance at 550 nm) and meanwhile causes a >30 °C surface temperature increase relative to the ambient environment under 1.0 sun illumination. Such a transparent anti‐/deicing surface can be fabricated onto a large class of substrates (e.g., glass, ceramics, metals, plastics), by applying a solid omniphobic slippery coating onto layer‐by‐layer‐assembled ultrathin MXene multilayers. Hence, the surface possesses a self‐cleaning ability to shed waterborne and oil‐based liquids thanks to residue‐free slipping motion. Passive anti‐icing and active deicing capabilities are, respectively, obtained on the solar thermal surface, which effectively prevents water from freezing and simultaneously melts pre‐formed ice and thick frost. The self‐cleaning effect enables residue‐free removal of unfrozen water and interfacially melted ice/frost to boost the anti‐/deicing efficiency. Importantly, the surface is capable of self‐healing under illumination to repair physical damage and chemical degradation.