Na2 + 2xFe2-x (SO4)3 (NFS) holds great promise as the cathode material for room-temperature sodium-ion batteries. However, large-scale application of NFS is highly impeded by its low electrical conductivity, which leads to poor cyclability and rate capability. To address these issues, we introduce rice husk-derived carbon with engineered porosity and structure as carrier to load active material NFS. The resultant hybrid material delivers extremely high specific charge capacity of 113.4 mAh g−1 at 0.1 C (1 C = 120 mA g−1), and a large reversible capacity of 81.2 mAh g−1 is retained after 100 cycles with a high retention rate of about 83.9%. The capacity of the composite can reach 60 mAh g−1 even at the current density 5 C. These excellent electrochemical performances are attributed to a favorable combination of the interpenetrating conductive carbon framework and ordered mesoporous structure that maintain well-balanced ionic and electronic conductivities throughout the electrode.