The early intervention of procuratorial organs in the criminal investigation process plays a crucial role in supervising and standardizing investigative activities. This intervention is vital for ensuring the accuracy of evidence collection, promoting the leniency system for guilty pleas, and reducing the “case-to-file ratio” in criminal cases. However, the current mechanism for early intervention faces several challenges, including inadequate legislative support, weak communication between prosecutors and police, difficulties in determining the timing and scope of intervention, and the absence of a reliable effectiveness evaluation framework. To address these issues, it is essential to enhance the legislative framework governing early intervention, leverage digital technology to eliminate information barriers, clarify the substantive and procedural conditions for intervention, establish objective and fair evaluation criteria, and integrate the outcomes of early intervention into the performance appraisal of prosecutors. These improvements will facilitate the effective realization of the early intervention mechanism in criminal investigations.