The invention relates to a double-pedal flushing valve which comprises a valve body, a first pedal, a first valve element, a second pedal and a second valve element. One end of the first pedal is connected with the valve body in a rotary mode, the second valve element is arranged inside the valve body and connected with the valve body in a sliding mode, a groove is formed in one end of the second valve element, a second supporting column is arranged at the other end of the second valve element, a second valve element hole is formed in the position, close to the second supporting column, of the middle of the second valve element, one end of the first valve element is arranged in the groove, a reset spring is arranged between the first valve element and the groove, a first supporting column is arranged at the other end of the first valve element, a first valve element hole is formed in the position, close to the first supporting column, of the middle of the first valve element, a barb for pushing the first supporting column is arranged on the lower end face of the first pedal, and a barb for pushing the second supporting column is arranged on the lower end face of the second pedal. The double-pedal flushing valve has the advantages that different flushing quantities can be selected by selecting the different pedals, and the water saving effect is achieved.