Pin fatigue acceleration vibration system

The invention relates to a pin fatigue acceleration vibration system which comprises a vibration body device and a locking device, a circulating liquid system and a displacement compensation system, wherein the vibration body device comprises a vibration table top, a first base placed on the vibration table top, an adapter plate connected with the first base and a connecting column fixed on the adapter plate; the locking device comprises a second base and a chain; the second base is movably connected to the connecting column; the chain is arranged between the second base and the adapter plateand the chain is locked on the second base; the circulating liquid system comprises a liquid collection tank and a liquid storage tank, the chain is placed in the liquid collection tank, liquid in theliquid storage tank flows back into the liquid storage tank through the liquid collection tank. The displacement compensation system comprises a compensator, and the first base is connected with theliquid collection tank thro