Objective To explore and summarize the imaging findings of complications after single-lumen silicone implantation in MRI, and investigate the characteristic imaging findings of various complications. Methods We conducted a retrospective study to review MR images of 61 breast implants in 31 female patients.MR scanning sequence included T1 weighted images, T2 fat-suppressed sequence images, diffusion weighted images (DWI) and T1 weighted dynamic contrast-enhanced images(DCE).To observe the margins, shapes, signals and enhanced shapes of implants as well as the surrounding tissues and analysis of the manifestation and type of the complications. Results A total of 61 silicone implants showed evidence of complications including 14 capsular contracture (23%), MRI shows capsular thickness more than 3 mm and spherical change. Intracapsular rupture 8 cases(13.1%),fibrous capsule is normal,T2-weighted MR imaging shows the hypointense line within the implant which was caused from the ruptured silicone outer shell collapsing to the center of implant. Extracapsular rupture 4 cases(6.6%),MRI shows extra-capsular ruptured and the content overflowed . Free silicone can be detected in breast tissue or post ectopectoralis .There were 4 cases(6.6%) of infections，MRI featured enlarged volume of breast, and blurred margins of implants with the presence of gas occasionally. When merging abscessed can see peripheral wall of the abscess with ringenhancement. Conclusion MRI has high accuracy in the postoperative complications of breast silicone implants. To summarize the MR findings of postoperative complications after implantation is helpfull to detect and diagnose complications in clinical work, and avoid the irreversible injury caused by delayed treatment.