According to the existing information management maturity model at home and abroad,a new Information Management Maturity Model was put forward. The opinions of the model from 15 well-known national information management experts were collected by Delphi method. It was found through the statistical analysis that the extent of identity is very high. On the basis of the experts' opinions pertaining to the model, an amended five-phase Information Management Maturity Model, including technology support level, resources integration one, management optimization one, strategy support one and continuous optimization one, was given. Finally an elementary frame of how to evaluate information management maturity of organizations was put forward.