Objective:To evaluate the diagnostic value of multi-slice spiral CT three-dimensional imaging(MSCT)and digital radiography(DR)in patients with multiple rib fractures.Methods:A total of 100 patients suspected of multiple rib fractures in Suzhou Hospital of Traditional Chinese Medicine from January 2022 to November 2023 were selected as the study objects.MSCT and DR Examinations were performed in all patients.The diagnostic efficacy of MSCT and DR was analyzed with clinical diagnosis results as the control.Results:One hundred suspected patients were diagnosed by clinical comprehensive diagnosis,of which 88 cases were actually multiple rib fractures.As a control,the number of true Yang,true Yin,false Yang and false negative cases examined by DR were 78,7,5 and 10 respectively,there were 86,11,1 and 2 MSCT cases,respectively.The diagnostic sensitivity and accuracy of MSCT were 97.73%,97.00%,which were higher than 88.64%,85.00%of DR,with statistical significance(P<0.05).The specificity of the two methods was 58.33%and 91.67%,respectively,with no statistical significance(P>0.05).Conclusion:The application of MSCT technique in the diagnosis of multiple rib fractures has a high diagnostic accuracy,and can obtain clear imaging images,which is non-invasive,safe,convenient and fast,and provides reliable basis for the diagnosis and treatment of the disease.