To　investigate　changes　of　functional　activation　areas　of　the　cerebral　cortex　and　the　connectivity　of　motor　cortex　networks　(MCNS)　in　stroke　patients　during　the　recovery,　five　patients　with　the　infarct　in　their　left　hemispheres　are　recruited.　Functional　magnetic　resonance　imaging　(fMRI)　is　performed　in　the　second,　fourth,　eighth,　and　sixteenth　weeks　after　the　stroke.　Images　are　analyzed　using　the　professional　software　SPM5　to　obtain　the　bilateral　activation　of　the　motor　cortex　in　left　and　right　handgrip　tests.　MCN　data　are　extracted　from　the　active　areas,　and　the　structural　and　functional　characteristic　parameters　are　computed　to　indicate　the　connectivity　of　the　network.　Results　show　that　the　ipsilesional　hemisphere　recruits　more　areas　with　less　active　extent　during　the　handgrip　test,　compared　with　the　contralesional　hemisphere.　MCN　shows　a　higher　overall　degree　of　statistical　independence　and　more　statistical　dependence　among　motor　areas　with　the　gradual　recovery.　It　can　help　physicians　understand　the　recovery　mechanism.