Yuan Meng, which means "making a dream come true" in Chinese, was introduced into his new enclosure in Beauval zoo in central France along with his mother as adoring onlookers ringed the site.
"We got up at 3:00 in the morning. My son absolutely wanted to see the cub," said Delphine who had travelled from the Paris region.
"We felt we took part in a historic moment. It was very moving," she said.
Panda reproduction, in captivity or in the wild, is notoriously difficult because the female panda is only in heat once a year for about 48 hours.
More From This Section
But the number of pandas worldwide has rebounded since the black-and-white bear was declared an endangered animal in the 1980s, thanks to efforts to protect it and its habitat.
China has dispatched its national treasure to only about a dozen countries, using the animal as a symbol of close relations.