[1][2][3] Born in Japan, he represented North Korea at the youth level internationally.

On 9 June it was announced that he had signed a contract with I-League side Shillong Laong.

Minchol was also captain of the Shillong Lajong squad for the 2013–14 season where the club finished at its highest ever standing.

[7][8] On 4 August 2017, Son was announced as a player for Hong Kong Premier League club Lee Man.

In 2018, Son received a call-up from the United Koreans in Japan squad ahead of the 2018 ConIFA World Football Cup.