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During the progress of gas well production, the major factor which influences the gas well production is liquid loading, while as for the gas reservoirs with edge and bottom water, the contradiction is more serious. Therefore correctly predicting and timely and effectively recognizing the sources of water were of great significance for improving and stabilizing the gas wells production and improving the production effect in gas reservoirs. Taking Condensate Gas Reservoir A as the research background, this paper determined the type of gas well water production and the water characteristic of the liquid loading by calculating the water content in the condensate gas reservoir, gas production, water production and water and gas ratio of production wells, by which the reservoir structure and relation of gas and water distribution are correctly identified, and then the effective measures for water controlling can be taken.