The characteristics of the automatic recognition of Machine Readable Travel Documents(MRTDs) are analyzed.A detailed design of information recognition method of MRTDs based on the analysis of the characteristic of MRTDs image is given,which consists of four primary procedures:location of machine readable area based on connect component analysis,linear fit based slant correction of machine readable area image,priori knowledge based adaptive segmentation of character image and analysis of structural features based character recognition.Using this method,an automatic information recognition system of visa image is implemented.The test result of the system shows that this recognition method has rather good performance on MRTDs information recognition.