<p>The structural and compositional constraints of Prussian blue analogues (PBAs), which are representative cubic compounds, considerably influence the cycling stability and rate performance of transition metal phosphides (TMPs) used as anodes in sodium-ion batteries (SIBs). In this research, Fe-Co PBA nanorods with distinctive morphology were successfully synthesized using an innovative template method, which subsequently facilitated the formation of Fe-Co-P nanorods through phosphating technology. The Fe-Co-P nanorods produced via the self-template approach maintain the one-dimensional nanostructure of the original template. When employed as anode materials for SIBs, these Fe-Co-P nanorods demonstrate commendable electrochemical properties, achieving a specific capacity of up to 709 mAh g⁻¹ at a current density of 0.1 A g⁻¹, and sustaining a capacity of 87 mAh g⁻¹ even at a high current density of 10 A g⁻¹. These remarkable performances can be attributed to the one-dimensional nanorod architecture, which offers a short diffusion pathway for sodium ions, thereby enhancing charge transfer efficiency. Additionally, the one-dimensional structure can alleviate mechanical stresses through axial extension, thus improving the structural stability of the electrode material during cyclic charging and discharging processes. This study not only confirms the viability of integrating the template method with phosphating strategies for the synthesis of phosphide nanomaterials with intricate structures but also paves the way for the advancement of high-performance anode materials for SIBs, providing a significant reference for future developments in energy storage technologies.</p>