The invention discloses an impact load tester which includes a base, a fixture mounted on the base and used for fixing a test bearing, columns vertically fixed on the two sides of the base, a bracket mounted on the top of the columns, a lifter mounted on the bracket, an electromagnet electrically connected with the lifter, an impact block positioned below the electromagnet, and an impact load block positioned below the impact block, wherein the electromagnet, the impact block and the impact load block are in the same vertical line. Through the scheme, the impact load of bearings can be tested accurately, the impact performance of bearings can be verified, the production requirements can be satisfied, substandard bearings can be prevented from flowing into the market, and the service life of bearings can be prolonged.