1, the site of the lesion: spinal malignant tumors appearing in different parts of the spine, the degree of difficulty in surgical resection is different. Lower cervical, lower thoracic, thoracolumbar and lumbar spine are relatively easy to reveal, and surgical resection is relatively easy to perform, so the corresponding recurrence rate is low. In contrast, tumors located in the upper cervical segment, upper thoracic segment, vertebrae or lamina region are relatively difficult to be revealed and resected surgically, so the recurrence rate is higher and the prognosis is relatively poor. According to the MRI sagittal classification of spinal deformity caused by spinal malignant tumor, spinal tumors of type I are relatively easy to be surgically resected and the recurrence rate is relatively low because the lesions are still confined to the vertebral body. The spinal malignant tumor of field type, the tumor lesion has broken through the vertebral body boundary, the surgical resection is relatively complicated, and the recurrence rate is relatively high. In concave type of spinal malignant tumor, the bone marrow and bone trabeculae in the vertebral body are completely replaced by metastases, and the tumor further develops infiltration and destruction involving the vertebral plate, which makes surgical resection more difficult and the recurrence rate is higher, and then the prognosis is poor. 3.Pathological grading: The prognosis of primary tumors of the spine differs greatly depending on the degree of malignancy and biological behavior. The prognosis is better if the malignancy of the tumor is relatively low, and worse if the malignancy of the tumor is relatively high. 4.The number of metastases: The number of metastases and the presence of combined metastases from other organs have a greater impact on the prognosis. 5.Surgical treatment of malignant tumors of the spine: Due to the deep location, complex anatomy and difficulty of surgery, resection of tumors often involves certain risks, so it is difficult to perform radical resection. Generally, the segmental resection can remove the tumor more thoroughly, and the prognosis is better than scraping and bone grafting. 6.Psychological factors: having a good state of mind is conducive to postoperative recovery.