The invention relates to the technical field of movie and television simulation of natural environment lighting, and provides a lighting system for simulating natural environment. The lighting systemcomprises a light arrangement unit, a light control unit, a panoramic HDR image data stream processing unit and an upper computer. The whole light arrangement unit is spherical, multiple light sourcesare arranged at the joint rod connection position and the middle area of the joint rod, and the single light source is composed of multiple LED lamp beads and rgb lamp beads. The light control unit controls the luminescent color and brightness of each light source according to the instruction of the upper computer. The sum of luminescence of multiple light sources simulates the natural lighting environment. The shade and shadow effect of the photographed and acquired panoramic image environment can be reproduced; the light sources can simultaneously or individually emit normal light and colorlight so that the real natural lighting information can be acquired; the spherical structure has less component types, simple structure, high assembling performance and high assembling efficiency; and the system is novel, simple, great in effect and high in efficiency so as to have wide application prospect.