During the progress of decoration construction process, the BIM model for decoration mainly focuses on the relationship between space, drawings and model data, considering the many factors of complex and diverse decorative shape, huge amount of model information, complicated file organization and collaborative relationship. The BIM application in decoration stage is to develop supporting documentation, to clarify the logical relationship between decoration and other professional building information models, to collate the pre-project information in time, and to collect other professional models and data, which is crucial for the rapid positioning of the decorative model.