〔Abstract〕 Objective To investigate the clinical application volue of silent magnetic resonance techniques to improve the success rate of children's head examination by magnetic resonance imaging (MRI) and reduce the use of sedatives. Methods A total of 490 children in Zhengzhou First People's Hospital from April 2018 to July 2018 were divided into two groups, The sedation group (210 cases) and non-sedation group (280 example), bounded by the age of 4 years. The sedation group was randomly divided into 3 subgroups of A, B, and C, respectively, 0.7 mL·kg-1, 0.5 mL·kg-1, 0.5 mL·kg-1 hydrated chlorofloxal chloride enema, A, B group adopted regular sequence scanning, C group uses a silent sequence scanning. non-sedation group was divided into 4 subgroups at different ages, 70 cases of each group, D, E group were 4 to 6 years old of children, F, G groups were over 6 years old. D, and F group used conventional sequence scanning, E and G group used the silent magnetic resonance technology. Randomly extract 100 parts of the routine and silent sequence data in which successful cases were randomly extracted. Results In the sedation group, the success rate of group C was 82.9%, slightly higher than that of group A (72.9%), and the difference was not statistically significant (P > 0.05). The success rate of group C was significantly higher than that of group B (60.0%), and the difference was statistically significant (P < 0.05). The success rate of examination in group A was 72.9%, higher than that in group B (60.0%), but the difference was not statistically significant (P > 0.05). In the non-sedation group, the success rate of group E was 91.4 %, which was significantly higher than that of group D (74.3 %), and the difference was statistically significant (P < 0.05). The success rate of G group was 98.6%, and the difference was not statistically significant compared with 98.6% of F group (P > 0.05). In terms of image quality, the image quality obtained by silent sequence has a high consistency with that of conventional sequence (Z = 0.644, P = 0.520), and the two different examination methods can obtain images that meet the diagnostic requirements. Conclusion Silent sequence can improve the success rate of child magnetic resonance examination, while ensuring image quality, and can reduce the sedative use dose of the child.