Abstract: Objective To evaluate the correlation between preoperative multimodal MRI and postoperative recurrence and high histological grade in patients with intracranial meningiomas. Methods One hundred patients with meningioma treated in our hospital from January 2016 to June 2019 were selected，according to the WHO after meningioma histological classification standard is divided into low level group（Ⅰ~Ⅱ）53 cases and high level group（Ⅲ ~ Ⅳ）47 cases，postoperative follow⁃up observation lasted for 1 year. There were 18 patients with recurrence （recurrence group）and 82 patients without recurrence（non⁃recurrence group）；All patients underwent conventional and enhanced magnetic resonance imaging（MRI），magnetic resonance tensor imaging（DTI）and magnetic reso⁃ nance spectroscopy（MRS）before surgery；Logistic regression was used to analyze the related influencing factors in patients with high⁃grade and recurrent meningioma. Results Compared with the non⁃recurrent group，there were statistically significant differences in tumor site，tumor size，boundary，enhancement foci，ADC value，FA value， Cho/NAA，Cho/Cr，NAA/Cr（P < 0.05）；The tumor size，boundary，enhancement foci，degree of edema，ADC value， FA value，Cho/NAA，Cho/Cr，NAA/Cr were significantly different from those of the low ⁃grade group（P < 0.05）； Multivariate Logistic regression analysis showed that tumor size，boundary，ADC value，FA value and Cho/NAA value were independent risk factors of meningioma recurrence（P < 0.05）；Tumor size，enhancement foci，ADC value， FA value and Cho/NAA value were independent risk factors of high ⁃ grade meningioma（P < 0.05）. Conclusion Multimodal MRI is helpful to determine postoperative recurrence and high histological grade in patients with intra⁃cranial meningioma.

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