Survival of patients with cervical lymph node metastatic cancer is judged as follows: 1. Survival and quality of survival of patients with cervical lymph node metastatic cancer depend on whether the primary foci are removed completely during operation, if the cervical lymph nodes are removed completely, the survival rate of the patients in 3-5 years will be higher; 2. For patients with cervical lymph node metastatic cancer, if the foci have already undergone distant metastasis, it is less meaningful to carry out surgery; 3. For patients with cervical lymph node metastatic cancer, if the metastatic foci are confined in the cervical area only, and have not metastasized to other parts of the body such as the mediastinum, the lungs, and the livers, they will have a good outcome if they are treated by functional or radical scavenging.