Effective anti/de-icing technologies are essential to the safety of equipment in freezing conditions. Currently, electrothermal deicing technology is widely adopted in engineering areas, but how to enhance the electrothermal deicing efficiency is currently focused by engineering technicians. Herein, we introduce a multi-layer composite thermal management coating strategy for effective and energy-saving electrothermal anti/de-icing. In the composite coating system, trilayer structures, containing a superhydrophobic surface layer, electrothermal middle layer, and heat insulation bottom layer, are involved that called superhydrophobic electrothermal insulation coating system (SEIC). The heat generated by the electrothermal layer is impeded by the bottom insulation layer to avoid the heat conduction loss, and rapidly conveys to the upper surface to melt ice, thereby greatly enhancing deicing efficiency. More importantly, the surface layer demonstrates superhydrophobic and anti-photothermal performances, which effectively keep the surface out of contaminant and solar overheating in summer. The synergism of superhydrophobicity and electric heating guarantees exceptional anti-icing properties of the composite coating system by reducing water-coating contact time, prolonging freezing time, reducing ice adhesion, and melting ice by electric heating. The efficient SEIC offers an eco-conscious, energy-saving path for anti-icing in the engineering field, which holds significant application in prospects.