1920, women with low breasts and bare breasts, such as bare arms and bare calves, may face jail time; 1927, only seven years later, the government changed its tune to advocate "Tian Ru", fined women who were shy and tied their breasts and asked them to breastfeed. As a result of the Tian Ru campaign to change the atmosphere, "breast augmentation" swept the world, and celebrities and movie stars competed to wear "breast augmentation" and boldly wore swimsuits. From this time on, women in China began to abandon Chinese-style corsets and choose bras. From the popularity of mini-vests to the controversy of Tian Ru Movement, bras entered China, swimsuits were born, bra advertisements were grandly released, and the westward spread brought great changes to the fashion changes of the Republic of China, and the most influential thing was the renewal of concepts.