The London side announced the contract renewal in a video published on Twitter, with the caption “his story continues”.
Son’s new contract will keep him at the club until 2025.
“It was already a big honour to play here for six years, the club have showed me massive, massive respect and obviously I’m very happy to be here,” Son said.
“It’s like home, especially with the fans, the players, the staff. There was no decision. It was easy. I’m so happy to be here and will be so glad to see the fans again soon.”
Since joining Tottenham from Bayer Leverkusen in August 2015, the 29-year old has scored 107 goals in 280 appearances.
“We are pleased to have agreed a new long-term contract with Heung-Min Son as we move towards the start of a new season and a new chapter for the club with Nuno Espirito Santo,” Spurs managing director, Fabio Pararici, said of the new contract.
Pararici added that “Everyone can see the real positive impact he has on the club, both on and off the field, and we are delighted that he will play a part in what we are trying to achieve in the coming years.”
Son is a fans’ favourite and was named in the PFA Team of the Season, alongside England’s captain, Kane, in the 2020/21 EPL campaign in which Spurs finished seventh in the league.