Abstract: Every reform in the criminal procedure system will exert a strong impact on the criminal judicial practice, including the innocent plea. The Criminal Procedure Law (2012 Revision) changed significantly the defense system, the evidence system and the criminal procedure. It is, therefore, safe to say that those revisions of criminal procedure system will profoundly influence the innocent plea. We could come to the preliminary conclusion that the new Criminal Procedure Law has positive effects on the rate, mechanism and the result of innocent plea, though the overall influence those revisions bring about hasn't been fully demonstrated. The positive effects, however, rely not only on the reformation of the system, but also on the innovation of the action notion, the success of judicial reform and the support of relevant measures.