In　this　research,　we　utilized　potassium　hydroxide　(KOH)　to　re‐activate　activated　carbon　and　subsequently　loaded　zinc　oxide　to　obtain　a　more　efficient　catalyst　for　the　decomposition　of　methyl　formate.　The　objective　of　KOH　activation　was　to　augment　the　catalytic　activity　of　the　original　ZnO/AC　catalyst.　Various　techniques　were　used　to　characterize　the　prepared　catalyst　samples,　including　BET,　FT‐IR,　SEM,　XRD,　XPS,　and　CO2‐TPD.　We　found　that　KOH　re‐activation　of　AC　can　increase　the　carrier＇s　specific　surface　area　and　alkaline　sites,　significantly　improving　the　catalyst＇s　performance.