Countdown to 11/11
The excitement has been building with the majority of e-commerce players launching aggressive online promotional campaigns to draw consumer attention and drive traffic to their sites.
Alibaba's preorders for Singles' Day promotions started in mid-October; consumers can pay a deposit upfront to reserve the product at the Singles' Day price and fork out the balance on Tuesday.
Read MoreDon't bet against Alibaba, says tech exec
Duan Ling, a 20-year-old student in Beijing, has already spent hours on websites like Taobao and Tmall, which are owned by Alibaba Group.
"You don't usually get so many special deals, so 11/11 is the best time to grab whatever you want," she said. "But it's not good for my bank account."
Delivery staff, meanwhile, are bracing for a busy day. "11/11 might be fun and shopping for many but for us, it is busy, busy, busy. I have to work extra hard to make sure delivery is on time. There's more than the usual amount," said Ye Junrong, who works for an express delivery service.
Read MoreAlibaba sparks hope for Asia e-commerce firms
Five hundred million packages are expected to be delivered between Tuesday and Sunday, a near 50 percent on-year increase, according to Barclays.
In a bid to make Singles' Day a global event, Alibaba has invited Tmall Global and AliExpress merchants to participate in the promotions this year.
Tmall Global is a business-to-consumer platform enabling businesses based outside China to reach mainland consumers. Ali Express is e-commerce site for users outside of China.
Selected items in the AliExpress marketplace will be offered at a 50 percent discount and shoppers in Brazil, Spain, Russia and other key markets can enjoy free international shipping for selected items, according to the AliExpress website.
Read More10 online retailers going from clicks to bricks
"Consumers from more than 220 countries will have the chance to purchase promotional products via AliExpress and Chinese consumers will be able to buy promotional products from overseas countries directly via Tmall Global," said Alicia Yap, analyst at Barclays.
"The China '11/11' shopping day could lead to a global shopping frenzy," she said.