The artefact was one of 500 Bronze-Age fossils found in the Sanxingdui archaeological site.
Experts say that the discovery may offer new insights into the ancient state of Shu, which occupied the area prior to 316 BC.
But the mysterious face mask also revealed popular memes and videos on social media.
As soon as a mass acquisition was announced on Saturday, users of the Weibo microblogging platform began making images lifting a mask on the faces of pop culture people.
The hashtag competition "Sanxingdui gold mask photo editing competition" has been viewed nearly four million times, and has revealed many gaps as networkers have praised the "good" and "good" mask.
Officials at the Sanxingdui museum - one of China's most important archaeological sites - soon joined the fun.
The 3,000-year-old gold mask has become an unexpected phenomenon on social media in China after its discovery in Sichuan province.
"Hello, we just woke up, it seems everyone was busy doing Photohopping?" the museum said in a recent Weibo post while sharing his findings on a meme.
The museum has also released a animated music video with masks and other art objects, while a rap song produced by a TV presenter praising the "ingenuity" of ancient civilization has become viral.
This is not the first time Chinese art has attracted the attention of social media users - in August, another pig-like sanctuary was discovered in the popular video game Angry Birds.
Does this ancient clay pig look ordinary?
First of all this mask is bacoming a interesting meme material on meme pages.
And also people are using this to making memes on celebrities
In addition to the gold mask, Sanxingdui archaeologists have found fragments of copper, gold, and antiquities made of ivory, jade, and silk.
These items were revealed in six "sacrifice pits", said the National Cultural Heritage Administration, which was used by the Shu culture to offer prayers for the purpose of peace and prosperity.
The ruins of Sanxingdui were accidentally discovered by a farmer in 1929. To date, more than 50,000 fossils have been unearthed in this area, about 40 miles (37 miles) from the city of Chengdu.