It takes a lot of time editing the IEC 61850 information model related files such as the IED capability description（ICD） file in the engineering field. A modeling tool is proposed which can automatically create IEC 61850 model related files. The IEC 61850 model information is stored in the database and files of different types can be automatically created by selecting special information from the database. Based on an analysis of the requirements on the modeling tool， a design and implementation scheme is given and some principles for quickly developing the modeling tool are proposed. The modeling tool has been actually applied and proved effective in reducing the editing time and increasing the validity of the model related files such as ICD file.