Prosecutors want accused subway sex fiend Michael Torres to spend at least the next 15 years in jail.

He pleaded not guilty yesterday to a terrifying attack on a woman, who was a random stranger, on an escalator at the Bowery station just after midnight Feb. 8.

He is charged with putting her in a chokehold, holding a sharp object to her neck, and dragging her down onto the tracks and into a tunnel. There, he allegedly sexually assaulted her, stopping and running off only after hearing nearby track workers.

“I’ll kill you,” he allegedly told his terrified victim. He was arrested at a homeless shelter.

Assistant DA Laura Millendorf said prosecutors will seek a sentence of 15 years to life.