A head-mounted magnetic resonance imaging device is provided. The magnetic resonance imaging device includes a head-mounted image acquiring unit, a controlling computer, and a signal processing computer. The signal processing computer comprises a controlling module, a data processing module, an image reconstruction module, an image store module, and an image compare module. The image compare module is configured to analyze and compare the cross-sectional scanning images of the user's brain memory microstructure collected at different times. The controlling computer can output different suggestions corresponding to different analysis and compare results of the image compare module to the user.本發明涉及一種頭戴式核磁共振成像儀,其包括:頭戴式圖像採集單元;控制電腦;以及信號處理電腦,所述信號處理電腦包括控制模組、資料處理模組、圖像重建模組、圖像存儲模組;其中, 所述信號處理電腦進一步包括圖像比較模組,所述圖像比較模組用於對使用者在不同時間點拍攝的腦部記憶體的掃描圖像進行分析比對,從而使所述控制電腦根據所述圖像比較模組的比對結果向使用者輸出相應提示。