Platinum (Pt) catalysts are the most practical electrocatalysts; however, their low abundance and high cost severely limit their large-scale applications. Efficient recovery is a key issue to be resolved before the use of Pt-based electrocatalysts can be broadly extended. Herein, the newly designed polyoxometalate [PtII(NH3)4]2[Mo8O26] (Mo8Pt) acts as an ideal recycling medium for renewable and highly effective Pt electrocatalysts. Starting from Mo8Pt, by a facile reduction reaction, the formed Pt/Mo2C/Mo2N@C-N electrocatalyst shows superior electrocatalytic activity as compared to commercial Pt/C (20%) under both acidic and alkaline conditions. Notably, the reaction of Pt/Mo2C/Mo2N@C-N in H2O2solution can regenerate Mo8Pt for Pt renew-ability. It is also demonstrated that the Pt electrocatalyst can be used for at least five rounds of recycling and regeneration, showing its efficiency and stability as well as its effectiveness. This work highlights a recycling medium strategy to the new generation of renewable Pt-based catalysts.