The invention discloses a node damage test device. The node damage test device comprises a central hollow ball body, a fixed pipeline, multiple steel pipe pole members and multiple flexible connection members, wherein the multiple steel pipe pole members and the multiple flexible connection members are in one-to-one correspondence, end portions of the steel pipe pole members are fixed with first limit boards, one ends of the flexible connection members are connected with the first limit boards, one end of the fixed pipeline is fixed at a side surface of the central hollow ball body, the other ends of the flexible connection members penetrate through the fixed pipeline axially and are then connected with the other end of the fixed pipeline, the fixed pipeline is internally provided with a start device for releasing the flexible connection members, and the first limit boards are tightened by the flexible connection members to fix the steel pipe pole members on the side surface of the central hollow ball body. The device is advantaged in that node damage can be simulated, safety and reliability are relatively high, and the automation degree is relatively high.