Xu Zengzhi, the suspect, tempted the children into his home before hitting them with a blunt object. Two were killed and the other four injured. Xu has been arrested, Jiangsu public security department said.
The incident took place in in Pizhou City in Jiangsu Province yesterday, state-run Xinhua news agency reported.
A preliminary investigation found that Xu committed the crime after a dispute with his neighbours. Further probe into the matter is underway.