Metal surface plasmons have a strong binding effect on the light field and can transmit photon signals in a very small space, which can be used to improve photon miniaturization and integration.??In addition, plason resonance has a strong enhancement of light field resonance, which can be used to regulate the absorption and radiation of photons and enhance the interaction between light and matter.??Our research group uses metal micro-nano structure design to regulate the excitation, propagation, resonance, absorption and radiation processes of metal surface plasmons.??