The invention provides a turbulent flow simulation device based on a light addressing liquid crystal space light modulator. The device comprises write-in light and read-out light, wherein a polaroid, a TFT (Thin Film Transistor) liquid crystal screen, a thin lens, a light addressing liquid crystal space light modulator and a light splitter are sequentially arranged along the direction of the write-in light, the read-out light is incident from the light splitter, and a 45 DEG angle is formed between the light splitter and the read-out light beam. A computer is connected with the TFT liquid crystal screen through a drive module, and the phase variation of the TFT liquid crystal screen is controlled and driven by the computer so as to modulate the write-in light. The device disclosed by the invention overcomes the defects, such as limited resolution, low aperture rate and the like of common electric addressing liquid crystal turbulent flow simulation devices, and has the characteristics of continuous distribution of the refraction ratio of real turbulent flow, and the like.