The purpose of this study is to report a case in which neoplasm metastases of cervical vertebrae were found in lung cancer patient during inpatient treatment for neck pain. Pain assessment and physical examination including numeral rating scale, range of motion of neck, Spurling's test, cervical compression test were performed. As a result, C-spine series X-ray was taken under the judgement it is not a simple neck pain. Bone metastases were suspected as X-ray showed loss of C7 left pedicle, indistinct C7 left transverse process and indistinct C4 upper margin. Magnetic resonance imaging and computed tomography were taken as further examination, and metastases of C4, C6, C7 were confirmed. The patient was transferred for professional treatment. In conclusion, this study shows the importance of appropriate diagnostic evaluation such as pain assessment and physical examination, and the need for diagnostic imaging in the treatment of patients with neoplasm history.