As a kind of enterprise's own endowment, different of enterprise life cycle of business characteristics, financial characteristics, strategic objectives, technical product W and nonwovens in life cycle stage As a result, the external risk factors such as economic prosperity may enterprises Different segments of the industry's activities have different impacts on cash flows, resulting in cash flows The probability of risk generation is different, and the path of generation and conduction is different. Considering the requirement of empirical evidence, this paper will enterprises Business life cycle is divided into growth period, maturity period and decline period, first pay attention to each stage of the business special . and financial characteristics, and thus analyze the cash flow flow characteristics to analyze the transmission mechanism. According to "life cycle Analysis on the Influence of Economic Prosperity on the of Different Students The mechanism and effect of cash flow risk in life cycle enterprises.