The latest information and data of the traffic light signpost labeling system from the official website of British government were collected in this review. Moreover, the origin of the system, the content and format of the labeling, the steps of displaying the nutrition information of the labeling, and the implementation effect of the labeling system were expounded, and then its experience and deficiencies of this system were summarized. Finally, our study will help to enlighten the improvement of Chinese-specific FOP labeling system.