The study of the jamming effects on visible-light imaging systems irradiated by supercontinuum spectrum lasers has vast potential applications. Focusing on the jamming effect of the supercontinuum spectrum laser, experiments were conducted to analyze its interference on visible-light imaging systems under varying radiation brightness backgrounds. A white-light fiber laser was utilized to generate a supercontinuum spectrum interference source, and an experimental system was constructed to evaluate the jamming effects of the supercontinuum spectrum laser on visible-light imaging systems. Jamming threshold data for detectors at different irradiance intensities were obtained, along with a mathematical relationship model between the detector's saturation pixel number and the jamming laser's power density. Results indicate that the detector's saturation pixel number is approximately logarithmically linear in relation to the interference laser' power density. Additionally, the visible-light imaging system is more vulnerable to interference when operating under low-irradiance backgrounds. These experimental findings provide valuable insights for designing, demonstrating, and operating supercontinuum spectrum laser jamming equipment.