Kagome metals exhibit diverse exotic phenomena, including superconductivity, nontrivial electronic topology, and charge-density wave (CDW) states. Here, we demonstrate that photoenhanced superconductivity and topological phonons emerge after the CDW order is suppressed via optical excitation in ${\mathrm{CsV}}_3{\mathrm{Sb}}_5$. Real-time time-dependent density-functional theory simulations demonstrate that laser irradiation leads to a complete suppression of CDW order with the photocarrier density of ∼0.18 electrons per formula unit. Consequently, the calculated superconducting critical temperature increases to 7.3 K in the high-symmetry phase stabilized by photoexcitation and subsequently decreases with stronger electronic excitation. In addition, the high-symmetry phase hosts nontrivial topological phonons. This work offers more insights for understanding photoinduced superconductivity and phonon topology, stimulating future investigations into the nonequilibrium properties of kagome materials, with broad implications for topological superconductivity and coupled quantum electron-phonon devices.

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• Charge density waves
• Superconductivity
• Ultrafast phenomena
• Kagome metal
• Topological materials
• Time-dependent DFT