The boy was playing on the balcony at home in Wujiangkou Village of Pujiang County, Jinhua City in Zhejiang Province.
He fell off the balcony accidentally and was stuck in a gap of only 25 centimeters between walls of two buildings.
The boy was hanging ungrounded at a height of two floors for half an hour till local firefighters came to his rescue.
The firefighters managed to tie a rope onto the boy for fear that he would drop further. Then after locating a spot on a wall, they started to break the 60-centimeter-thick wall from inside the building.
The rescue operation took some two hours. The firefighters finally made a hole on the wall big enough to get the boy out.
The boy was soon sent to a hospital for treatment. Fortunately he only got slight injuries in his forehead and some bruises in other parts. But doctor said that a scar would appear on his forehead.