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Several models for predicting the risk of non‐sentinel lymph node (NSLN) metastasis in breast cancer patients with positive sentinel lymph nodes (SLNs) have been developed. The purpose of this study was to validate and compare these models in Chinese patients. A total of 159 breast cancer patients with positive SLNs treated at our institution were included. Among them, 81 (50.9%) patients had at least one NSLN involvement. The Cambridge, Mou, Mayo, Tenon, MDA, Memorial Sloan‐Kettering Cancer Center (MSKCC), Ljubljana, SNUH, Turkish, Louisville, Stanford, and Saidi models were evaluated and compared using receiver operating characteristic (ROC) curves, calibration plots, and false negative (FN) rates. The Cambridge and Mou models outperformed the others, both with area under the ROC curves (AUCs) of 0.73. The Mayo, Tenon, MDA, MSKCC, Turkish, Ljubljana, SNUH, and Louisville models …