Microwave and radiofrequency ablation are very effective local treatment for patients with liver metastasis. In the worldwide, it has been widely used alone or in combination with other treatments such as hepatectomy and chemotherapy for patients with various conditions. However, there is no evidence of ablation therapy for patient with liver metastasis. This time, we researched the current status and usefulness of local ablation therapy for metastatic liver cancer from the past literature, and discuss future issues.