The article introduces a novel concept of reprogrammable holograms based on 1-bit coding metasurfaces, which can dynamically switch between '1' and '0' states by controlling the loaded diodes. This allows multiple desired holographic images to be realized in real time with a single metasurface. The proof-of-concept experiments demonstrate the feasibility of this approach, showing high-resolution, low-noise, and high-efficiency holographic images. The proposed reprogrammable hologram has potential applications in various fields such as microscopy, display, security, data storage, and information processing. The design and experimental validation of the reprogrammable hologram are detailed, including the modified Gerchberg-Saxton algorithm for generating binary phase profiles and the experimental setup for measuring holographic images. The results show that the hologram can be adaptively tuned to improve image quality at different observation distances, with a signal-to-noise ratio (SNR) of about 10. The reprogrammable metasurface hologram can be extended to higher frequencies and multiple bits, offering more advanced and versatile functionalities.The article introduces a novel concept of reprogrammable holograms based on 1-bit coding metasurfaces, which can dynamically switch between '1' and '0' states by controlling the loaded diodes. This allows multiple desired holographic images to be realized in real time with a single metasurface. The proof-of-concept experiments demonstrate the feasibility of this approach, showing high-resolution, low-noise, and high-efficiency holographic images. The proposed reprogrammable hologram has potential applications in various fields such as microscopy, display, security, data storage, and information processing. The design and experimental validation of the reprogrammable hologram are detailed, including the modified Gerchberg-Saxton algorithm for generating binary phase profiles and the experimental setup for measuring holographic images. The results show that the hologram can be adaptively tuned to improve image quality at different observation distances, with a signal-to-noise ratio (SNR) of about 10. The reprogrammable metasurface hologram can be extended to higher frequencies and multiple bits, offering more advanced and versatile functionalities.