You can come to Haidian District Library, bring your ID card and deposit (cash) and go to the site to apply for a library card.

Address: Distribution Department, Floor 2, Block C, Haixing Building, Haidian District, Beijing

You can also directly search for "Jiatu Borrowing Books" on Alipay, and then choose Haidian District Library in Beijing to apply for a virtual reader card and borrow books directly online. ....