This study aimed to depict the characteristics, injury outcomes, and payment of obstetric malpractice lawsuits to better understand the medicolegal burden in obstetrics and categorize the causes of obstetric malpractice lawsuits using The National Health Service Litigation Authority coding taxonomy for further quality improvement in maternity care. Methods:We reviewed and retrieved key information on court records of legal trials from China Judgment Online between 2013 and 2021.Results: A total of 3441 obstetric malpractice lawsuits successfully claimed were reviewed in this study, with a total indemnity payment of $139,875,375. After peaking in 2017, the number of obstetric malpractice claims begins to decline. Of the 2424 hospitals that were sued, 8.3% (201/2424) were referred to as "repeat defendant" because they were involved in multiple lawsuits. Death and injury were the outcomes in 53.4% and 46.6% of the cases, respectively. The most common outcome type was neonatal death, which made up 29.8% of all cases. The median indemnity payment for death was higher compared with injury ( P < 0.05). In terms of detailed injury outcomes, the major neonatal injury had higher median indemnity payments than neonatal death and fetal death ( P < 0.05). The median indemnity payment of the major maternal injury was higher than that of maternal death ( P < 0.05). The leading causes of obstetric malpractice were the management of birth complications and adverse events (23.3%), management of labor (14.4%), career decision making (13.7%), fetal surveillance (11.0%), and cesarean section management (9.5%). The cause for 8.7% of cases was high payment (≥$100, 000). As indicated by the results of the multivariate analysis, the hospitals in the midland of China (odds ratio [OR], 0.476; 95% confidence interval [CI], 0.348-0.651), the hospitals in the west of China (OR, 0.523; 95% CI, 0.357-0.767), and the secondary hospitals (OR, 0.587; 95% CI, 0.356-0.967) had lower risks of high payment. Hospitals with ultimate liability (