The invention discloses a broadband matching circuit structure with higher harmonic suppression. The invention discloses a circuit functional block which mainly comprises a radio frequency power amplification stage PA, a radio frequency choke inductor La, a second harmonic suppression network, a broadband matching network, a third harmonic suppression network and a fifth harmonic suppression network. The second harmonic suppression network, the third harmonic suppression network and the fifth harmonic suppression network are composed of series resonance circuits composed of N (N is larger than2)-order inductors and capacitors. A radio frequency input signal enters the PA from the signal input port to be subjected to power amplification, passes through the second harmonic suppression network, the broadband matching network, the third harmonic suppression network and the fifth harmonic suppression network, and finally is transmitted to a load through the coupling capacitor. According tothe harmonic suppression network and the harmonic broadband matching circuit, lumped parameter elements are adopted and can be completely integrated on one silicon chip. The harmonic suppression network enables the second harmonic, the third harmonic and the fifth harmonic to be in short circuit to the ground, so that the efficiency is improved, and the linearity of radio frequency signal outputis higher. And by using a broadband matching technology, the PA can meet a multi-mode and multi-frequency working mode.