The present invention discloses a portable integrated controllable chemical oxygen production apparatus, wherein hydrogen peroxide is adopted as a raw material, catalysis with a catalyst is performed to produce oxygen, and the apparatus comprises a hydrogen peroxide solution storage chamber, a reaction chamber (filled with a catalyst), an oxygen storage chamber, a buffer and connection chamber, a micro-pore control device and other parts. The apparatus is characterized in that the amount and the speed of the hydrogen peroxide solution entering the reaction chamber are controlled to control the contact of the catalyst and the hydrogen peroxide so as to control the production rate and the production amount of the oxygen; the air pressure change is controlled to control the amount and the speed of the hydrogen peroxide solution entering the reaction chamber; the size of the oxygen outlet valve is controlled and the assisted effect of the micro-pore control device is combined so as to control the change of the air pressure; through the micro-pore control device and the check valve, the pressure change of the hydrogen peroxide solution storage chamber is adjusted; and through the pressure reducing valve, the pressure is maintained at the safe range. The portable integrated controllable chemical oxygen production apparatus of the present invention has characteristics of small volume, high gas production, controllable process, safety, environmental protection, and easy carrying.