matsuuo(Drobo.mein.nagoya-u.ac.jp http://vwrw.mein.nagya-u.ac. jp/ Abstract-In this paper, we propose a method of the parameter identification of flexible object. We proposed the method to recognize the shape of the rope by using model of the flexible object and visual information. However, in this method, accurate recognition and compensation using the visual information are not possible, when the flexural rigidity of model is greatly different from that of the actual rope. Here, we propose the identiflcation method of the rigidity coemcient of object with experiment results.