Whether the pulse rate of 120 times / min is normal depends on the specific situation, as follows: 1, abnormal: If it is in a state of quiet rest, the pulse rate of 120 times / min is abnormal pulse, for the pulse rate is too fast, you need to promptly go to the hospital to identify the reasons for the increase in pulse rate, to clarify the relevant diseases suffered, so that the corresponding treatment for these diseases, so that the relevant diseases are effectively controlled. 2, normal : If the pulse rate reaches 120 beats per minute under exercise, mental tension or emotional excitement, it is not an abnormal condition and can be recovered soon through rest and emotional stability.