The invention relates to a charger power output suspension control method and a charger. The method includes the following steps that: after a charging suspension command is received, the output voltage and output current of a charger are detected in real time, and the output voltage is continuously adjusted to be a voltage obtained by subtracting a first set voltage value from a current output voltage; and when a detected output voltage no longer changes or output current is smaller than a set threshold, adjustment is stopped, and the voltage at this movement is recorded as a suspension voltage. With the technical schemes of the invention adopted, the power output suspension function of the charger can be realized, a power module is no longer required to be turned off at first and then restarted, and a current impact problem can be better solved.