Hollow bronze sculptures are prized for their beauty and durability, but internal corrosion can silently undermine their structural integrity. To preserve these artworks, a multi-layered approach is essential. First, applying specialized corrosion-resistant coatings to interior surfaces creates a protective barrier against moisture and oxidation. Microcrystalline wax or acrylic-based solutions are particularly effective for this purpose. Second, controlling environmental humidity is crucial - maintaining levels below 55% significantly reduces corrosion risks. For outdoor sculptures, proper drainage systems should be incorporated during fabrication to prevent water accumulation. Regular inspection using endoscopic cameras helps detect early signs of deterioration in inaccessible areas. For added protection, consider placing moisture-absorbing silica gel packets inside hollow sections, replacing them quarterly. Annual professional cleaning to remove corrosive pollutants and reapplication of protective coatings will ensure long-term preservation. By combining these methods, artists and conservators can effectively combat internal corrosion while maintaining the sculpture's aesthetic qualities for generations to come.