The invention relates to a method of recycling wastewater from production of epoxy resin key intermediate epichlorohydrin, in particular to a method of recycling wastewater from epichlorohydrin production by solvent-free hydrogen peroxide direct oxidation. Particulate activated carbon modified with Zn, Fe, Cu or Ag is used as an adsorbent; as the metal forms an active center on the activated carbon, the ability to adsorb monochloropropanediol and dichloropropanol is enhanced, and high adsorbing capacity is provided. After monochloropropanediol and dichloropropanol are desorbed via a solvent, the activated carbon is regenerated for reuse. The desorbed and concentrated monochloropropanediol and dichloropropanol are chlorinated and saponified to produce epichlorohydrin so that recycling is achieved. The method is low in production cost and low in consumption, causes little pollution, has a simple process and is easy to industrialize.