The invention relates to a method for synchronously supplying a measurement value. The method comprises the following steps of supplying an evaluation unit, first measurement equipment, second measurement equipment, a first communication bus and a second communication bus, wherein the two communication buses are independent from each other, the first communication equipment perform communication with the evaluation unit through the first communication bus, and the second communication equipment perform communication with the evaluation unit through the second communication bus; preferably transmitting a first triggering signal to the first communication equipment through the first communication bus so as to trigger a measurement process and supply a first measurement value; transmitting asecond triggering signal to the second measurement equipment through the second communication bus so as to trigger a measurement process and supply a second measurement value; transmitting the first measurement value and the second measurement value to the evaluation unit through the first communication bus and the second communication bus respectively, wherein a preset time offset between the transmitting time points of the two triggering signals so that the measurement processes of the two sets of measurement equipment are synchronously performed approximately at the measurement time point;and further processing the two measurement values through the evaluation unit, such as comparing the two measurement values.