The utility model discloses an insulator DNA injured test platform for it does not still have can simulate the actual operational environment of GIS insulator at present to solve, carries out the technical problem of the equipment of DNA injured test research to the GIS insulator. The utility model discloses a to test the insulator sets up in the internal portion of GIS wire chamber through high -pressure guide arm is fixed, and it applys on experimental insulator through high -pressure guide arm to produce impulse voltage by impulse generator, imitate experimental insulator and suffered impulse voltage's true environment, install image collector in the outside of GIS metal cavity in addition, collecting record is carried out to process to experimental insulator is suffered impulse voltageand is taken place the flashover, the engineering of being convenient for fortune dimension personnel are shock -resistant to experimental insulator, insulating ability carries out analysis assessing.