His father Han Jingang is very pleased his son arrived in the Year of the Dragon - an auspicious time to have a child.
"My wife was not different from other pregnant women. She ate and drank normally. But she's given birth to such a big, fat son. Today is the first day of spring in the Chinese calendar and he's a 'dragon baby'. I'm very happy."
Mother Wang Yujuan says the couple's 6-year-old daughter weighed just over 4 kilograms at birth, so she was not expecting such an enormous child.
"I felt that my body was clumsier than when I had been pregnant with my daughter. My belly was bigger than it was then. I guessed the baby would be between 4.5 and 5 kilos. I never expected to hear that he weighs 7 kilos."
And though he's not the largest baby ever born, Chun Chun will almost certainly have a big future ahead.