［Objective］ To address the issue of unnecessary heating of photothermalsuperhydrophobic coating for high-voltage transmission lines during non-icing periods.［Methods］ Thermochromic microcapsules（with a critical color-change temperature of 5-10 ℃）， silica nanoparticles，and polydimethylsiloxane（PDMS）were combined to construct hierarchical micro-nano structures. A multifunctional superhydrophobic coating（TCSC） integrating temperature-adaptiveregulation and photothermal effects was developed. This coating appears black at low temperatures， exhibiting a significant photothermal effect for rapid temperature increase，and turns white at ambient temperatures，where the photothermal effect weakens，resulting in slow or even negligible temperaturerise. The hydrophobicity and ice adhesion strength were validated through simulated climate chambersand cooling platforms；photothermal effects under varying light intensities were researched by using cold light source tests，and chemical stability was evaluated by using acid，alkine and salt solutions.［Results］TCSC has a water contact angle of 153°，an icing delay time of up to 341 seconds（about 4 times that of a bare aluminum surface）， and an ice adhesion strength of only 53. 3 kPa（about 16% that of the bare aluminum surface）. Deicing can be achieved within 70 seconds under weak light（200 W/m²）. Addition-ally，TCSC enables dynamic control of photothermal efficiency at a criticalcolor-change temperature of 5-10 ℃，reducing substrate thermal damage by 45% during non-freezingseasons. Further-more its contact angle fluctuation in acidic，alkaline and saline environments is less than 5°，allowing it to function as self-cleaning gravel with a tilt angle of 15°.［Conclusion］This coating provides an innovative solution for the all-weather adaptability of anti-icing technology forhigh-voltage transmission lines through a thermochromic photothermal synergistic mechanism.