The previous record was set in 2014-2015 - 25.9 million tonnes.
The result will be achieved thanks to rising production, increased global demand and rising price differentials for soybeans and palm oil.
During the first five months of 2017, Indonesia increased palm oil export by 29% compared to the previous year. Shipments to India increase the most - up to 818,000 tonnes.
It is expected that the country's crop will reach the record 36.5 million tonnes.