The tournament, which is in the pro-am format, had been co-sanctioned by the European Tour and the U.S. PGA Tour's secondary Nationwide Tour in the past, but has been solely sanctioned by the PGA Tour of Australasia since 2011.
A smaller scale collaboration this year saw 10 Asian Tour members feature in the tournament.
"Following a landmark tri-partite agreement, the Asian Tour will now become a full co-sanctioning partner of the ISPS HANDA New Zealand Open...," officials said in a statement.
"We are thrilled to become an official co-sanctioning partner of the ISPS HANDA New Zealand Open which will provide a wonderful opportunity for 30 Asian Tour members per year to compete in this outstanding tournament in 2018 and 2019," Asian Tour CEO Josh Burack said.
The tournament will offer a minimum prize fund of NZ$1.1 million (625,805 pounds), the statement said.
(Reporting by Simon Jennings in Bengaluru; Editing by Peter Rutherford)