There are the following differences between Pinduoduo, Taobao and Douyin in selling goods:

1. Different sales models: Pinduoduo is dominated by social e-commerce, and users can get more favorable prices through group buying, sharing and other methods; Taobao is a traditional e-commerce platform, and users can directly purchase goods; Douyin is a short video platform that promotes and sells goods through video content.

2. Different user groups and usage scenarios: Pinduoduo's users are mainly concentrated in second- and third-tier cities and rural areas, and their consumption is mainly low-priced goods; Taobao's users are spread all over the country, and their consumption scenarios are relatively wide; Douyin's users are mainly young people, and their consumption tends to be fashionable and trendy.

3. Different marketing methods and promotion methods: Pinduoduo focuses on social communication and user sharing, and attracts users through group buying and low prices; Taobao has more online and offline cooperation and diversified advertising promotion; Douyin is more inclined to user-generated content and short video recommendations. In summary, there are obvious differences between Pinduoduo, Taobao and Douyin in sales models, user groups and marketing methods.