The scientist has been branded in some quarters as "China's Frankenstein" after he released a YouTube video last week in which he claimed that gene-edited twins had been born in China.
He claimed that his team of researchers had modified the sisters' embryos to effectively switch off an HIV-related gene because their father suffers from the condition.
He has since then been condemned by Chinese health officials, who said they knew nothing of the experiment.
He is also facing an investigation from the science and technology ministry, which has ordered him not to do any research.
The scientist gave a presentation in Hong Kong last week on his experiment. Since the summit, his whereabouts have been unknown.
Last week, SUSTC issued a statement on its official website distancing itself from He's work.
The university said He has been on leave since February, the work was conducted outside the university and the school and the biology department knew nothing.
It also said it would establish an independent committee and investigate the matter.
- South China Morning Post