"I would like to congratulate President Trump. Long live!" Duterte said to applause on Wednesday. "Now we're here, I don't want to ... fight because Trump is already there."
The traditional alliance between the United States and the Philippines had been strained since Duterte insulted Obama in September.
One month later, during a visit to China in October, Duterte said the US alliance was over, claiming "America has lost."
But one day after Trump won the 2016 United States presidential election, the Philippines president said he and Trump had a shared trait, and that some military exercises would be back on.
"We both like to swear. One little thing, we curse right away, we're the same," Duterte said of Trump on Wednesday.