Both were found guilty of conspiring “to kill his daughter and younger son by staging an accidental fall from the 15th floor of his apartment building”, the state-backed newspaper China Daily reported last year.
The couple were sentenced to death in December 2021 and executed on Wednesday, the court said.
‘Today is truly a good day’
The news came the same day as another high-profile execution. Wu Xieyu was found guilty of killing his mother by repeatedly striking her with a dumbbell in 2015, a statement by a court in eastern Fujian province said.
China keeps data on its use of the death penalty secret. However, Amnesty International estimates that the country is the top executioner globally, with thousands executed and sentenced to death each year.
Sentences are frequently handed down for crimes ranging from drug trafficking to corruption and murder, with lethal injection the most common method of execution.
Zhang and Ye’s crime sent shock waves across China for its cold-blooded premeditation, as well as the age of the victims.
Their executions quickly rose to the top of a list of trending topics on the Chinese social media site Weibo on Wednesday, receiving nearly 200 million views.
“Today is truly a good day,” read one widely liked comment under a related post by the state news agency Xinhua.
“The punishment fits the crime,” wrote another.