The deep integration of big data technology and criminal investigation has led to big data investigation, which has effectively responded to the new situation of crime. But in practice, big data investigation is excessive in administrative logic and technical logic, but short in judicial logic. At the same time, the research of big data investigation is mostly limited to the investigation stage, but fails to explore the impact of big data application on criminal justice from the perspective of criminal litigation. Starting from the concept of big data investigation, this paper questioned the way to include “future crime” in the objects of big data investigation. Then it summarizes three theoretical defects and practical risks in the judicial field of big data investigation, and makes up for the lack of judicial logic. On this basis, this paper proposes the improvement path of big data investigation regulation from the dimensions of investigation measures, evidence application and defense guarantee, aiming to curb the judicial risk of big data criminal investigation.