Here, we report the tunning study of superconductivity and charge density wave in $\mathrm{Cs}{\mathrm{V}}_3{\mathrm{Sb}}_5$ through the V kagome net doping. Combining electrical transport and magnetic susceptibility measurements, we reveal the opposite effect of Ta and Mo doping. Ta doping promotes the superconductivity but suppresses charge density wave, which may be explained by the lift of van Hove singularity towards $E_{\mathrm{F}}$. On the contrary, Mo doping suppresses the superconductivity quickly and leads to a continuous increase of charge density wave temperature up to 100.7 K. Our result suggests that electron doping can also effectively tune charge density wave state in $\mathrm{Cs}{\mathrm{V}}_3{\mathrm{Sb}}_5$.

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• Charge density waves
• Electrical conductivity
• Superconductivity
• Kagome lattice