The optical limiting performances of few-layer transitional metal dichalcogenides (TMDs) nanosheets in the VB group (${\mathrm{VS}}_2$, ${\mathrm{VSe}}_2$, ${\mathrm{NbS}}_2$, ${\mathrm{NbSe}}_2$, ${\mathrm{TaS}}_2$, and ${\mathrm{TaSe}}_2$) were systematically investigated for the first time, to the best of our knowledge. It was found that these TMDs nanosheets showed a normalized transmittance in the range of 20%–40% at the input energy of $1.28{\mathrm{GW}/\mathrm{cm}}^2$. Ultralow initial threshold F_S ($0.05–0.10\mathrm{J}/{\mathrm{cm}}^2$) and optical limiting threshold F_OL ($0.82–2.23\mathrm{J}/{\mathrm{cm}}^2$) were achieved in the TMDs nanosheets, which surpassed most of the optical limiting materials. This work showed the potential of TMDs beyond ${\mathrm{MoS}}_2$ in optical limiting field.