Dielectric materials with high energy storage density ($W_{\text{rec}}$) and efficiency ($\eta$) are expected for energy storage capacitors. In this work, $\langle$001$\rangle$-textured ${\text{Na}}_{0.7}$${\text{Bi}}_{0.1}$NbO₃ (NBN) ceramics were prepared by a templated grain growth technique. The effects of microstructure and orientation degree on dielectric properties, polarization and energy storage performance were investigated. The textured ceramic with an optimized orientation degree (70%) showed a high $W_{\text{rec}}$ of 2.4 J/cm³ and $\eta$ of 85.6%. The excellent energy storage properties of textured ceramic originate from the co-effect of interfacial polarization and clamping effect. The results indicate that texture development is a potential candidate to optimize the energy storage properties of functional ceramics.