Abstract: Lymphatic metastasis is one of the key factors that affect the prognosis of gastric cancer. Clinically, standardized assessment of lymph node metastasis is a prerequisite for accurate staging and optimal treatment options. Currently, no consensus exists on methods to evaluate standardized lymph node metastasis of gastric cancer. This article discusses lymph node metastasis mechanism, common assessment methods, evolution of stages, and lymph node access protection. It also presents other aspects of the comprehensive evaluation of methods for the effective and standardized assessment of clinical lymph node metastasis of gastric cancer.