Acting on foundation and gist of e-government study, government modeling will help us to understand complex government management and work way, and offer reference and design thereunder for e-government information systems designing and empoldering, provide thought for present government change to e-government.The paper introduces basic theory of e-government and government, and understands presently transforming environment of government by world government transform thinking and tide and review and expectation of Chinese government reformation process. But those qualitative understand are insufficiency to know government, and we need more detailed tools and methods to help us to understand government. The tool is government model and modeling. Information systems modeling and enterprise modeling have gain uncommon achievement. We can build modeling methodology adapt to government model in e-government, and provide help for unmature government modeling.The paper brings forward aim and scope of government modeling, and discusses factors of government modeling and government model brief thing. The author defines research bounds of government model and government model of e-government, and then compares and analyses government modeling method, and indicates different modeling factor, different government modeling methed. The author puts forward integrated government modeling method based on reinventing government. For the first time, the author constitutes three fields of government analysis lay, and three dimensions of model describe lay, and modeling frame based on government reconstituted, and simulation analysis system, and agility UML modeling method. The frame have theory direction and application value to government modeling.The paper describes function model, organization model, business process model, information model and general government model conceptual frame of perfect government. Consulting perfect government model, the