Objective To analyze the social support level and its influencing factors of patients with adverse pregnancy and to provide basis for targeted nursing interventions. Methods The convenience sampling method was adopted to get 106 cases of patients with adverse pregnancy as the sample and the home-made general questionnaire and social support rating scale (SSRS) for the research were used to analyze the social support level and influencing factors of patients with adverse pregnancy. Results The overall social support level of patients with adverse pregnancy was moderate and there was no significant difference with the subjective support, objective support, support utilization rate and overall level of normal pregnant women. The education level, income and the reproductive history of patients with adverse pregnancy affected their social support. Conclusion Nurses should help patients gain more social support and help patients with poor education, low income and nulliparous adverse pregnancy better feel and use the social support.