No, credit cards and debit cards cannot be converted to each other unless you apply for a new debit card and then cancel this credit card.

But you don’t actually need to worry. I think the Bank of China Taobao Credit Card is better

In addition to the basic functions of an ordinary credit card, it can also automatically bind your Alipay account. Implementing the cartoon payment function, you can easily experience simple, safe and fast Alipay online payment without opening online banking. You can also directly upgrade to Taobao Diamond VIP, enjoy top-level membership benefits, and enjoy special discounts on millions of products from tens of thousands of boutique merchants on Taobao.

The most important thing is that the annual fee for your BOC Taobao Card is waived in the first year. If you swipe the card 5 times (no limit on amount) in a physical store, you can waive the annual fee for the next year. You don’t have to worry about annual fees at all. (When going to the mall and supermarket, just buy a few bottles of water and swipe your credit card. It’s easy to reach 5 times a year)