Aiming　at　polyethylene　pipe＇s　viscoelastic　material　properties,　using　ANSYS　to　analysis　hot　melt　connector＇s　mechanical　properties　of　polyethylene　pipe　with　ball　hole　cracks　and　predict　the　failure　life　through　Matlab＇s　program　loop,　compared　to　the　polyethylene　pipe＇s　normal　service　life.　Take　Prony　series　analog　PE　pipe＇s　viscoelastic　mechanical　properties,　resulting　in　the　maximum　stress　of　polyethylene　pipe　is　increased　and　the　failure　life　of　PE　pipe　is　reduced　while　ball　hole　size　increased.　When　the　ball　hole　size　exceeds　a　certain　value,　polyethylene　pipe＇s　life　would　not　fulfill　the　requirements.