The present invention relates to a pulse alarm clock consisting of a main body of the alarm clock and two quick-fastening straps, wherein it has a high-voltage pulse generator installed inside the main body of the alarm clock, which is controlled by a timing device therefrom, and in addition, both its positive and negative pulse electrodes, which are controlled by a transfer switch, are extending outward along with an output-end and then combining all together at two quick-fastening straps, and thereat, it is able to fasten the alarm clock at a high sensitive portion of a human body with the utilization of these two quick-fastening straps, thereby, when it is reaching the preset alarm time on the alarm clock, it will activate the high-voltage pulse generator to creating the vibration effect that will be transferred to a high sensitive portion of the human body through these two quick-fastening straps and thus achieving the objective of wakening the user from sleep consequently.