Silver terephthalate (Ag2TP) with the theoretical specific capacity of 141mAhg−1 was intentionally employed as the organic anode in Li-ion and Na-ion batteries respectively, aiming to in-situ generate the conductive metallic particles from the easily-reducible Ag+ cations. Meanwhile, the conveniently-synthesized Ag2TP solids inherently exhibited nanosized objects without any post treatment. Based on these advantages, the Ag2TP anode in Li-ion battery could exhibit discharge capacity of average 149mAhg−1 at 1C for 500 cycles, maintaining as high as 113mAhg−1 at the 500th cycle; while the Ag2TP anode in Na-ion battery still displayed similar value of average 133mAhg−1 at 1C for 100 cycles. These results could represent the new advancement among the organic electrodes of terephthalate salts.