Abstract: Pancreatic cancer is prone to recurrence after surgery, and local recurrence has greatly affected the prognosis of patients because it is difficultly distinguished from postoperative normal reactions. This paper reviews the diagnostic value of contrast-enhanced CT, dual-energy CT, photon-counting detector CT, PET/CT, and other imaging techniques for local recurrence at common sites (surgical area, perivascular region, local lymph nodes) following pancreatic cancer resection, and summarize the diagnostic advantages and limitations of various CT signs and quantitative parameters. It also summarizes the research progress of radiomics and deep-learning models in recurrence differentiation and risk prediction, so as to provide reference for clinical decision-making.