This article presents a novel approach to multispectral manipulation using tunable optical cavities and selective-transparent layers, specifically focusing on vanadium dioxide (VO₂). The authors demonstrate a universal method to overcome the wavelength dependence of VO₂, enabling multispectral manipulation from the visible to microwave frequencies. The system consists of tandem VO₂-based Fabry–Pérot (F-P) cavities, which allow for independent customization of optical responses at target bands. Key features include: 1. **Multispectral Manipulation**: The system can achieve broadband color-changing capabilities in the visible region (up to 60 nm shift in resonant wavelength) and freely switch between transmittance, reflectance, and absorptance in the infrared to microwave regions with a dynamic range exceeding 0.7. 2. **Fast Response Speed**: The ultrafast phase transition of VO₂ allows for a response time of 0.9 seconds, outperforming other optical systems. 3. **Reversible Tunability**: The system can dynamically modulate transmittance, reflectance, and absorptance, providing a wide range of applications in memory, thermal management, imaging, and communications. The article also discusses the limitations of existing VO₂-based systems in multispectral operations, such as the strong wavelength dependence and poor color-changing ability in the visible region. The proposed design overcomes these limitations by using a specific structure that amplifies the permittivity change of VO₂ in the visible region and maintains optical accessibility in the infrared to microwave regions. Experimental results validate the multispectral and dynamic manipulation capabilities of the system, making it a significant advancement in multispectral optics and material science.This article presents a novel approach to multispectral manipulation using tunable optical cavities and selective-transparent layers, specifically focusing on vanadium dioxide (VO₂). The authors demonstrate a universal method to overcome the wavelength dependence of VO₂, enabling multispectral manipulation from the visible to microwave frequencies. The system consists of tandem VO₂-based Fabry–Pérot (F-P) cavities, which allow for independent customization of optical responses at target bands. Key features include: 1. **Multispectral Manipulation**: The system can achieve broadband color-changing capabilities in the visible region (up to 60 nm shift in resonant wavelength) and freely switch between transmittance, reflectance, and absorptance in the infrared to microwave regions with a dynamic range exceeding 0.7. 2. **Fast Response Speed**: The ultrafast phase transition of VO₂ allows for a response time of 0.9 seconds, outperforming other optical systems. 3. **Reversible Tunability**: The system can dynamically modulate transmittance, reflectance, and absorptance, providing a wide range of applications in memory, thermal management, imaging, and communications. The article also discusses the limitations of existing VO₂-based systems in multispectral operations, such as the strong wavelength dependence and poor color-changing ability in the visible region. The proposed design overcomes these limitations by using a specific structure that amplifies the permittivity change of VO₂ in the visible region and maintains optical accessibility in the infrared to microwave regions. Experimental results validate the multispectral and dynamic manipulation capabilities of the system, making it a significant advancement in multispectral optics and material science.