There are 14 qualified teachers at the center to help children with rehabilitation treatment

"The increasing number doesn't mean I have earned more money," Hu said. "A full cost of treatment for a month is only 1,500 yuan ($238) and we also provide free treatment for those who are in real economic difficulty."

To give the children a better rehabilitation setting, she put almost all the income into the center's construction and needs to repay a 600,000 yuan loan.

"I treat every one of the children like my own and I hope they can become better and better," Hu said. "I would like to build a warm home for them and I believe someday they can fly from here."