Considering the interference of highlight on the radiation characteristics of the target surface and on the signal response characteristic of Low-Light-Level(LLL) TV,a feature quantitative model of LLL TV imaging under highlight disturbance was built based on the mechanism of highlight interference LLL TV imaging and the end-to-end imaging modeling idea.On the basis of the model,the simulation of the output image of LLL TV imaging system after highlight disturbed was performed by real-time calculating the imaging gray of ground objects on the three dimensional scene simulation platform.Contrasting the imaging gray of the target and its background and the imaging contrast of the target in the experimental results with that in the simulation results,the verification of the reliability of the simulation model was performed.The verification results show that the proposed model was greatly consistent with the experimental results and had high reliability.Finally,the influence of different interfering factors on the target imaging contrast was discussed,which showed that the role of highlight to the radiation characteristic of the target surface was the main factor that affecting the system imaging quality when the highlight was outside the field of view of the system,while the role of highlight to the system gain was the main factor when the highlight was in the field of view of the system.