Abstract: One of the frontier research in high-energy nuclear physics is to study the Quantum Chromodynamics (QCD) phase diagram and locate the critical point. According to 3D Ising-QCD theory, critical intermittency is a distinctive feature of the QCD critical point, and thereby the measurement of intermittency can be served as a crucial probe for studying the QCD phase structure. This paper briefly review recent progress of intermittency analysis in relativistic heavy-ion collisions. In experiment, we present the results of charged hadrons in Au+Au collisions from the RHIC-STAR experiment, and proton results in Ar+Sc collisions from the SPS-NA61 experiment. Additionally, the results from the hybird UrQMD+CMC model are also introduced. Finally, we give a outlook for next stage of research.