Introduction: F-18 Fluorodeoxyglucose (FDG) positron emission tomography/ computed tomography (PET/CT) has been known to be an effective imaging modality in detecting gastric cancer recurrence. However, only a few studies have evaluated the diagnostic performance of FDG PET/CT as a surveillance imaging tool during clinical follow-up in asymptomatic gastric cancer patients after curative resection. This study was aimed to assess the clinical role of surveillance FDG PET/CT for detecting cancer recurrence in asymptomatic gastric cancer patients after curative resection. Methods: We retrospectively enrolled 245 gastric cancer patients (169 early gastric cancer patients and 76 advanced gastric cancer patients) who underwent 1-year (135