The theoretical analysis and laboratory test indicate that the relation between working load of anchorage bolt and its fundamental vibration frequency caused by excitation load appropriates for cubic power function.In the first vibration period,the ratio of amplitude value of reflected wave to that of first wave at the fixed end of anchorage bolt gradually decreased,but the ratio of amplitude value of reflected wave to that of first wave at the free bottom of anchorage bolt gradually increased.This paper puts forward a nondestructive and real-time test method of the working load of anchorage bolt.