Aiming at problems of the complicated calculation of radiation reflection components and realistic deficiency in the infrared scene simulation, we present a Blinn-Phong BRDF infrared reflection model, which can be used in 3D infrared scene simulation based on Unity. Based on the threshold segmentation of measured infrared images, the target surface temperature is solved by using the simulation link inversion model, which includes simplification of radiance operation and infrared imaging process. According to the similarity between the infrared radiation theory and visible light illumination model, the modified Blinn-Phong model is transplanted into the infrared band, and the bidirectional reflectance distribution function (BRDF) is introduced to improve simulation accuracy. The Blinn-Phong BRDF infrared reflection model is presented. Finally, zero stadia simulation scenes are built based on this radiation reflection model, and simulated images and measured images are compared to verify the reliability and effectiveness of the reflection model. Experimental results indicate that the reflection model has high simulation efficiency, and can better simulate the high light phenomenon of infrared reflection, meeting the requirement of radiation reflection in the infrared scene simulation.