A Chinese woman dumped by her boyfriend has spent an entire week at a KFC fast-food restaurant eating chicken.

Tan Shen was so depressed by the break-up she even phoned her work to call in sick so she could continue to eat chicken wings, Central European News reports.

The 26-year-old, from Chengdu in the Sichuan Province, entered the 24-hour KFC near a train station by her home for a feed after "walking around a feeling miserable".

"I hadn't planned on staying there long, I just wanted some chicken wings," Ms Shen said.

"But once I got in there and started eating I decided I needed time to think."

Ms Shen said she could not face going back to her apartment as it reminded her of her former partner.

It took several days for KFC employees to notice Ms Shen inhabiting the restaurant.

"… I realised we had been serving her for the past three days and that she hadn't actually left," working Jiang Li Lung said.

"When we asked if she was ok, she said she was and just needed time to think.

"And then asked for another box of chicken wings with extra large fries."

As Ms Shen was a paying customer and not causing any harm they let her stay.

After a week inside the store local media started to follow her story, prompting Ms Shen to leave the store and travel to her parent's home in Shandong Province.

"I had already told work I was off sick, so (I) phoned them and said I was leaving," Ms Shen said.