There are no clinical statistics on the average life expectancy for polycystic liver, and if a patient’s condition is mild it usually does not affect life expectancy. In a few cases, the patient’s condition is more serious and may be life-threatening, but the specific life expectancy is affected by a variety of factors and cannot be generalized. Generally speaking, the prognosis of polycystic liver is better, and it will not have serious impact on patients’ health, and the impact on life expectancy is small, and regular review can be done; however, in a few cases, the polycystic liver is more serious, and it will press on the local tissues and cause infections, which will affect the liver function, and even have an impact on the life expectancy, but at present, there is no statistic on average life expectancy of polycystic liver. However, there are no statistics on the average life expectancy of patients with polycystic liver. Due to the different physical conditions of individuals and the different medical treatments they receive, the life expectancy of patients cannot be generalized even if their condition is serious. If the condition is serious, timely treatment should be provided and a good lifestyle should be maintained to facilitate recovery.