A charge-discharge electric quantity measurement method of a battery comprises the steps of firstly, building a battery charge-discharge electric quantity measurement system comprising a measured battery, a measurement acquisition circuit and an electric quantity calculation module; secondly, controlling the measurement acquisition circuit to acquire a battery voltage, a battery current, a batterytemperature, battery voltage change and battery current change of the measured battery; and finally, performing calculation to obtain charge-discharge electric quantity of the battery, and completingmeasurement of the charge-discharge electric quantity. Compared with the prior art, the battery works in a short-period large-power charge-discharge working mode, an electric quantity measurement error caused by lag, dynamic internal resistance and temperature change during the discharging process of the battery can be more accurately corrected, an accurate battery output result is obtained, anda good application value is achieved.