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胃癌保功能手术可以看做是胃癌精准化治疗的具象化体现。消化道重建作为胃癌手术的关键步骤，在保功能手术中同样起到举足轻重的作用。消化道重建目的主要包括保留正常生理通道和消化功能、保留和重建重要结构及最终提升患者术后生活质量。本文就消化道重建在早期胃癌保功能手术中的作用，尝试建立了一套新的分级系统，以期对外科医生合理选择胃保功能手术消化道重建方式提供参考。“,”Function-preserving gastrectomy (FPG) can be regarded as a concrete embodiment of precise treatment for early gastric cancer. Digestive tract reconstruction plays an important role in FPG. The aims of reconstruction mainly include the preservation of normal digestive tract and digestive function, the reconstruction of pivotal anatomical structure, and the consequent improvement of postoperative quality of life. We establish a new classification of digestive tract reconstruction based on the different role of digestive tract reconstructions in FPG for early gastric cancer, meanwhile we briefly summarize current progress and elucidate surgical indications. We hope that it can provide theoretical reference for surgeons to choose the appropriate procedure of digestive tract reconstruction after FPG.