Intrahepatic cholangiocarcinoma (ICC) is a highly aggressive primary liver malignant tumor with insidious onset, atypical early symptoms, and poor prognosis. Radical surgical resection is the only effective treatment for ICC. Lymph node metastasis (LNM) is one of the most important risk factors affecting the prognosis of patients with ICC. Most guidelines suggest routine lymph node dissection (LND) during radical resection of ICC. However, the extent of LND in radical ICC resection and its prognostic value is still controversial. Therefore, the authors review the research progress on the controversies and problems of LND in radical ICC resection combined with the existing research results at home and abroad to provide a reference for the clinical treatment of ICC.