The Spanish striker moved to north London from Valencia ahead of the 2013-14 season, but has struggled to make an impression - contributing just seven league goals.
He has been strongly linked with a move away, with Villarreal reportedly leading the chase for the 30-year-old as they look to strengthen ahead of a return to the Europa League.
However, Pochettino intends to use Soldado as part of his squad for the forthcoming campaign despite Harry Kane playing as a lone striker for much of last season.
"He [Soldado] is our player and in our plans," Pochettino said ahead of the Audi Cup friendly tournament in Munich.
"I can't confirm that [he will be leaving]."