When designing and applying colors in advertising billboard production, according to the nature of the business, pairing should be warm, bright, eye-catching, and cool in nature. Color serves as a connecting metaphor, transitioning from visual color to the content of the business, and achieving an extraordinary advertising effect, which is the ultimate goal of each operator. Red, yellow, and green have strong penetrating power and can leave a deep impression with eye-catching and bright colors; Some warm and medium tone colors are more likely to attract customers' attention; Moreover, the combination of various colors is also highly favored by people. In the selection of patterns and fonts, full consideration should also be given to the industry characteristics and target consumer groups. For example, for children's clothing stores, the design colors of their signs should be bright and bright. In terms of patterns and fonts, vivid and interesting cartoon images and fonts should be selected, which can not only express the business characteristics but also attract the attention of more small consumers.