Objective To analyze the risk factors of pregnancy complicated with acute attack of asthma in Zhongshan Bo'ai Hospital.Methods A total of 100 patients with pregnancy complicated with asthma treated in Zhongshan Bo'ai Hospital from July 2019 to February 2021 were selected as the research objects.Patients were divided into acute attack group (n=46) and no attack group (n=54).Multivariate logistic regression analysis was used for investigation and analysis.Results The patient number of attack was 46,accounting for 46.0%. The incidence of cesarean section,length of hospital stay and complications in the attack group were higher than those in the no attack group,and the difference was statistically significant (P<0.05).Conclusions Gestational age,use of asthma drugs,anxiety and IL-17 level were independent risk factors for pregnancy complicated with acute attack of asthma.Great attention should be paid to these patients.