The relationship between Taobao and Alipay is a company, and they are both subsidiaries of Alibaba.

Taobao is a C2C e-commerce platform, that is, a platform for online shopping, where you can shop and sell your things, provided that you have passed the real-name authentication, so that you can be a qualified seller.

Alipay is a payment platform developed by Taobao. Buying things on Taobao is to put money into the seller's Alipay. But the seller can't mention it. Only you receive the goods from the seller. After confirmation. Then notify Taobao to pay the seller.

Taobao's member name and Alipay's account can be bound, and then Alipay is used for transactions on Taobao by default, which plays a certain role as a guarantee intermediary.