As shown in FIG. 1, the radio frequency power amplifier provided by the present embodiment includes two stages of amplifier circuits, a bias circuit and a current detection feedback circuit, wherein in the two stages of amplifier circuits, each stage of amplifier circuit uses a common emitter amplifier circuit, i.e., a radio frequency input signal is input into a base of a transistor 101 of a first stage of amplifier circuit through a direct current blocking capacitor. An emitter of the transistor 101 is grounded. An inductor 102, serving as a load of the first stage of amplifier circuit, is connected between a collector of the transistor 101 and a power supply voltage. The output power of the first stage of amplifier circuit respectively enters bases of a transistor 105a, a transistor 105b and a transistor 105c of a second stage of amplifier circuit through the collector of the transistor 101 and a capacitor 103a, a capacitor 103b and a capacitor 103c. Emitters of the transistor 105a, the transistor 105b and the transistor 105c of the second stage of amplifier circuit are jointly grounded. An inductor 106 is used as a load of the second stage of amplifier circuit. One end of the inductor 106 is connected to the power supply voltage, and the other end of the inductor 106 is respectively connected to collectors of the transistor 105a, the transistor 105b and the transistor 105c. The output power of the second stage of amplifier circuit is transmitted to the output end to be output through the direct current blocking capacitor after passing through the collectors of the transistor 105a, the transistor 105b and the transistor 105c.