The sagittal balance of the upright spine maintains intervertebral alignment with minimal energy expenditure. Cervical disc degenerative disease may occur with cervical dysfunction and cervical endplate overload. In recent years, the commonly used parameters for the measurement of cervical sagittal balance in studies include: cervical lordosis, thoracic 1 slope, cervical sagittal vertical axial, spinal-cranial angle, neck tilt, thoracic inlet angle, and cervical lordosis minus thoracic 1 slope. There was a correlation between the parameters: the thoracic inlet Angle was approximately equal to the sum of the cervical lordosis and the thoracic 1 slope, thoracic 1 slope and cervical lordosis were negatively correlated with the spinal-cranial Angle, cervical lordosis and cervical sagittal vertical axial were positively correlated with thoracic 1 slope. In addition, it has been found that lumbar lordosis minus thoracic kyphosis (LL-TK) is an independent influencing factor of cervical curvature (CC), and the relationship is as follows: CC = 10- (LL-TK)/2. Postoperative changes of cervical sagittal parameters can be measured to evaluate the prognosis of anterior cervical discectomy and fusion (ACDF). Currently, commonly used imaging parameters include cervical lordosis, cervical sagittal vertical axial and thoracic 1 slope. In asymptomatic population, cervical sagittal parameters are not only related to age, gender, but also race. Besides, postural changes also have an impact on partial cervical sagittal parameters. Recent studies have emphasized the importance of a more comprehensive assessment of spinal alignment. T1 incident and C-2 spino-pelvis inclination can reflect the relationship between the cervical region and the global spine. Understanding the impact of thoracolumbar region and global spine alignment on cervical deformity, as well as the standardized design of cervical orthopedic surgery will be the focus of future research;