The 66-year-old film producer and his attorneys had attempted to have the charges dismissed, but Judge James Burke rebuffed the request at a court room in New York on Thursday.
Weinstein has been charged with raping a woman in a hotel room in March 2013, while he's also been charged with forcibly performing oral sex on another woman in 2006.
Weinstein's lawyers had argued that the case had been "irreparably tainted" by the conduct of Detective Nicholas DiGaudio, who has been accused by the producer's camp of interfering with a witness and an accuser.
But, according to prosecutors, there is "ample evidence" for Weinstein to stand trial.