Dual-brand strategy refers to the strategy of setting up two brands, a main brand and a sub-brand on a certain product. Among them, the main brand covers several products of the enterprise, and at the same time, different sub-brands are set for each product, highlighting the personality image of different products.

For example, Taiwan Province Ding Xin Group launched "Master Kong-Little Tiger" instant noodles. This strategy first promoted the famous brand "Master Kong", which can attract consumers to pay more attention to advertising content. In addition, "Little Tiger" undoubtedly tells people that there is another new product in the brand family of "Master Kong", thus establishing a corporate image of continuous innovation and forge ahead in the minds of consumers. Therefore, the sub-brands of dual-brand strategy are beneficial to contrast the image of the main brand and improve the promotion effect, but they need higher publicity skills. When the brand awareness is not high, it is not conducive to consumers' identification of products.