This paper proposes an intelligent light language system solution that integrates preset and custom functions. This system is composed of a hierarchical architecture, including an interaction layer, a logic processing layer, and a hardware execution layer. It supports multiple application scenarios such as driving, temporary parking,getting on and off the vehicle, and instructions. The interaction layer provides custom functions such as mode selection,hand-drawing, and text input. The logic processing layer issues control instructions in combination with vehicle statussignals, and the hardware execution layer drives LEDs to achieve light language animations. Through design analysis,this system can enhance the personalized expression and information transmission capabilities of automotive lighting.