Back pain caused by lung cancer is persistent back pain, which is difficult to be relieved by analgesic drugs. The examination can reveal the local occupying lesions invading into the chest or ribs, and in severe cases, it can metastasize to the spine, causing chest pain and back pain. For back pain caused by lung cancer metastasis, local analgesic treatment, such as particle implantation, radiotherapy, and systemic treatment for lung cancer, such as chemotherapy or targeted therapy, immune checkpoint inhibitor treatment, etc., can be done. In conclusion. Back pain caused by lung cancer is mainly persistent swelling and pain, but for persistent pain, local treatment and systemic treatment are needed to relieve pain, reduce symptoms and prolong life.