Sheikh Mohammed bin Rashid Al Maktoum, 72, intimidated his sixth wife, Princess Haya Bint Al Hussein, 47, but now he must pay her £251.5 million.
He must also support Al Jalila, 14, and Zayed, 9.
Mr Justice Moor said the payments are backed by a £290 million bank guarantee for the kids' maintenance and protection as adults.
The £450 million divorce payment handed to Tatiana Akhmedova in 2016 is thought to be the biggest ever issued by an English court.
Princess Haya, half-sister of Jordan's King Abdullah II, departed the UAE for England with her two children in early 2019 citing her husband's alleged abuse.
During their court battle, senior family judge Sir Andrew McFarlane found the Sheikh had authorised the hacking of Princess Haya's phone.
Sheikh Mohammed denied any involvement.
Shamsa and Latifa, two of the Sheikh's adult daughters, were kidnapped and returned to Dubai, Sir Andrew ruled.
‘Given their prominence and the general concerns of terrorism and kidnapping encountered in such circumstances, they are particularly vulnerable and need water-tight protection to ensure their continued safety and security in this nation,' Mr Justice Moor said in his ruling.
‘Princess Haya will always be at risk, whether from Sheikh Mohammed or the typical terrorist and other threats encountered by a princess in her position,' the judge stated.
In his judgement, Mr Justice Moor ordered Sheikh Mohammed to pay £11 million per year for Princess Haya and her two minor children's security.
The kids will get a £3 million education fund.
Princess Haya will earn £5.5 million each year for the rest of her life, with both children receiving similar sums.
The judge also gave the kids a £5.1 million holiday budget, a £450,000 personnel budget, and a £275,000 animal budget.