Kirchner is due to visit the Asian powerhouse from Tuesday to Thursday at the invitation of President Xi Jinping, who visited Argentina last year.
The 61-year-old Argentine leader has been recovering since breaking her ankle the day after Christmas.
She said on Twitter yesterday she was finally walking short distances with her cast-bound ankle and that her doctor said she could be out of her wheelchair by Tuesday.
But her doctor "recommended that if the routes are very long, I will use the chair. We will see," she posted.
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The ankle fracture is the latest in a spate of health setbacks that have forced her to miss several trips, including to a G20 meeting in Australia and a visit to the Vatican.
Kirchner's China trip seeks to bolster ties between Buenos Aires and Beijing, which is expanding its business presence in Latin America at breakneck speed.
China has a total of USD 23 billion invested in Argentina, mostly in energy, mining, the financial sector and farm exports.