The couple had reportedly been arguing for days after the husband called time on their marriage.
Ma Yingfen, 51, from Hong Kong, had been arguing with his Vietnamese wife Srey Mao, 28, on Tuesday afternoon before she ran out of the apartment and returned with a bottle of petrol.
His wife went mad and doused herself in petrol before setting herself alight. The husband later died from injuries
The wife is in critical condition and is currently being treated for her injuries in Hospital.