The invention provides a method for producing steel for a quartering hammer piston rod by rolling a high-carbon low-alloy steel continuous cast round billet. The method comprises the following steps:1) the rolling ratio is guaranteed to be larger than or equal to 8; 2) during hot charging, the preheating zone of a continuous heating furnace is at 680-780 DEG C, the first heating zone is at 1000-1100 DEG C, the second heating zone is at 1200-1260 DEG C, and the soak zone is at 1200-1250 DEG C; for heating time, heating in the preheating zone is longer than or equal to 240 mim*k, heating in thesecond heating zone and the soak zone is longer than or equal to 360 mim*k, and k is equal to round billet nominal diameter mm/380; during cold charging, the temperature of the four zones of the continuous heating furnace is also controlled and the heating time is correspondingly controlled; 3) the surface of the round billet is cooled to 900-1030 DEG C for rolling after the round billet is discharged out of the furnace; and 4) after rolling, the round billet is put in a pit at 500 DEG C or higher to be cooled slowly and taken out of the pit for air cooling when cooled to 150 DEG C or lower.Compared with the prior art, the method solves the problems that a round billet is easy to crack when heated, and a manufactured piston rod has poor center structure compactness and is prone to abnormal fatigue and break during use.