The invention discloses a pendulum-type impact tester. The impact tester consists of a machine frame, a pendulum bob, a jaw seat and a pendulum hanging mechanism, wherein a pendulum body of the pendulum bob adopts a sectorial structure; the pendulum is provided with a certain amount of balancing weight holes in different size, so that the simply supported beam impact and cantilever beam impact tests are realized, and by changing a pendulum angle, the impact energy and the impact speed can be changed, the requirements of a plurality of measuring ranges are met, the wind resistance of the pendulum body with sectorial face is small, the energy loss is small, and the phenomenon of bent pendulum rod caused when the impact point deviates the mass center can be avoided. Moreover, the tester has the advantages of convenient assembly-disassembly and debugging, reasonable structure, low cost and convenient use, and is convenient to be used by production enterprises and is favorable for researchtests.