In this study, recovery properties of square braided fabric after flat compression were focused. The observation of the cross section with optical microscopy was performed and the mechanism of recovery deformation was clarified. Inside structure of braided fabric and recovery properties were extremely changed at first compression and then tended to converge to stable structure. Recovery ratio kept almost constant value after 2nd cycle. Recovery of braided fabric was resulted from change in braiding angle of fiber bundle ‘a’ and ‘b’ and decrease in crimp of fiber bundle.