Abstract: Objective To summarize the feature of magnetic resonance imaging（MRI） in patients alveolar hepatic echinococcosi （AHE） and complicated multiple organ invasion.Methods 210 patients with AHE were admitted to our hospital between February 2016 and January 2018,and all of them were confirmed by postoperational histopathologic examination. The imaging data of the patients were retrospectively analyzed,and the invasion features of MRI in brain,lung,and kidney were discussed.Results Out of the 210 patients with AHE,the hepatic lesions located in the left lobe,the right lobe and the left and right lobes were 26.2%,57.1% and 16.7%,respectively;the patients with brain invasion accounted for 12.9%,lung invasion for 17.1%,brain and lung invasion for 20.0%,brain and kidney invasion for 13.8%,and brain,lung and kidney invasion for 10.0%;the MRI feature of brain invasion presented with multiple round cystic lesions,that of lung invasion showed multiple 0.6 to 3.0 cm nodular parenchymal calcification,and the MRI sign of renal invasion was sand-like calcification around the cystic lesions. Conclusion The MRI examination has obvious advantages in diagnosis and differential diagnosis of patients with hepatic echinococcosis. We can observe the number,size and shape of the lesions,the calcification of the lesion wall and cystic contents,and the the adjacent organs involvement. We can also get information about the progress of the disease. Once the MRI scan shows that the patient has liver lesions,the attention should be paid to the examination of other important organs,such as brain,lung and kidney,so as to decrease the missed diagnosis.