Wrongful conviction is the shadow of the criminal justice system. Under this shadow are the flaws and deficiencies of the system, which must be shed light on in order to instigate and promote reforms and improvements to the system. Extracting confessions with torture is a major cause for wrongful convictions in China. The exclusionary rules against illegally obtained evidence should be an effective way to eliminate tortures from criminal justice. The Provisions on Several Issues Concerning the Examination and Evaluation of Evidence in Death Penalty Cases and the Provisions on Several Issues Concerning Exclusion of Illegal Evidence in Criminal Cases and the newly amended Criminal Procedure Law have made progresses in this regard, but we still have a long way to go to turn the laws on paper into the rules in action.