Postoperative recurrence remains a major limitation to long-term survival in hepatocellular carcinoma (HCC). In addition, a narrow surgical margin is widely regarded as a risk factor for recurrence. Neoadjuvant therapy may represent a strategy to reduce the risk of recurrence, thereby improving long-term outcomes. Tislelizumab plus lenvatinib has demonstrated promising efficacy with manageable safety in advanced HCC. Therefore, we will conduct a phase II study to compare neoadjuvant tislelizumab plus lenvatinib followed by surgery versus surgery alone in patients with stage IA HCC and an anticipated narrow surgical margin.