Trans-stream ecological compensation is a vital means to improve ecological capital values, protect stream ecology and promote regional sustainable development. Governments will bear issues of reputation during making decision and conduction of ecological compensation projects which are of social environmental benefits and public interests. This paper sets the gaming scenarios of water source and water reception, and incorporates loss cost, ecological gain, transfer payment, and reputation as well to establish an ecological compensation evolution gaming model in discussing their gaming evolution process and factors between water source and water reception by means of stream managing administration and governmental reputation function. Matlab is used to analyze the influence of parameter changes on stakeholder's selection. Ten factors impacting the cooperation evolution include rewards and punishment, water source protection cost, water reception transferred compensation payment, pollution treatment benefits, reputation-converted benefits. This paper presents suggestions on intensifying stream administrative functions, raising public and enterprise's awareness of environmental protection, establishing reputation evaluation mechanism and setting up multiple ecological compensation paths.