Abstract: There are many methods to evaluate gas wells'flow potential, which has complete academic base. It can be said that a set of ideal methods of evaluating gas wells'flow potential has been formed, however much problems always arise during the actual estimating course due to the limit of quantity and quality of data. According to the actual course, the writer summarys a set of practical flow chart of evaluating the flow potential, which is quite significant to evaluate effectually the flow potential by available data.