Abstract: Prestressed concrete pipe pile is applied widely.Pipe pile and pile cap joints are structural weaknesses that can easily break under a earthquake, thus resulting in serious consequences.By changing the connection form of a pipe pile and pile cap, and imposing cyclic loading on the structure to simulated seismic wave, it was studied on pipe pile load-displacement hysteresis, ductility etc.Test results showed that adding non-prestressed rebar within the filled pipe pile could increase evidently the bearing capacity of pipe piles;and using to non-prestressed rebar dowels inserted at an angle in the connection between the cap and pipe pile could have a great improvement on the structural ductility and seismic energy dissipation of the joint.