The invention relates to a zinc ion battery with graphene oxide as a positive electrode. The rechargeable zinc ion battery is composed of a positive electrode, a negative electrode, an isolating membrane between the positive electrode and the negative electrode and an electrolyte, zinc element is mainly used as an active material of the negative electrode, an active material of the positive electrode is graphene oxide, the electrolyte is a liquid electrolyte with soluble salt of zinc and soluble salt of manganese as a solute and with water as a solvent and having ionic conductivity. The battery has characteristics of high capacity, low cost and repeated charge-discharge performance, and can be widely applied in the fields of mobile phones, personal digital notepads, cordless telephones, electronic toys, game machines, personal audio video units, portable data terminals, palmtop computers, experimental devices and the like.