1. Home building materials market: for example, Haomai Home, Ikea Home, etc. These large-scale home markets often have furniture stores selling full-length mirrors, and there are many general styles, so you can choose.

2. Home appliance shopping malls: such as Shuanghui Commercial Building, Gome and Suning. These shopping malls also have specialty stores or counters selling full-length mirrors. You can go and have a look.

3. Online shopping platforms: Taobao, JD.COM, Tmall, etc. There are also many full-length mirror shops to choose from on these online retail platforms.

These are some places to buy full-length mirrors in Beijing. You can also search in local business districts, markets, supermarkets and other places. Before buying, I suggest you pay attention to product quality and after-sales service, and choose regular merchants to buy, so as to avoid unnecessary troubles.