The invention discloses a high-power low-power-consumption amplifier circuit which comprises a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, a first triode, a second triode, a third triode, a fourth triode, a fifth triode, a sixth triode, a seventh triode, a first diode and a second diode. The multiple triodes are used for setting up the multistage amplification circuit, circuit lumped parameter elements are reduced, and paths of faults are reduced; while high-power amplification is achieved, low power consumption of the circuit is guaranteed, and the high-power low-power-consumption amplifier circuit is ingenious in design and worth of popularization.