Li Na's retirement means that the 29-year-old Peng is now leading the line for China at Melbourne Park.
On Wednesday she booked her spot in the third round of the competition, and while she said that Li Na's achievements have increased the game's exposure in China, she does not believe that all eyes are now on her.
"I didn't really watch this because the tennis now in China for sure is more popular than before because more tournament, more player on the tour," she said.
"I think she make two Grand Slam, and also before like start from 17, 18, first with the Olympic go, then get more and more the good result in China. And also, you know, like the marketing, more popular, more tournament in China. For sure is more people watch tennis now."