In the process of electrochemically activation of water with electrolysis are obtained catholyte and anolyte. The device is called electrolyzer and is separated into two parts with a semi-permeable membrane. In the two sections are put two electrodes with direct current. These are cathode and anode for the waters catholyte and anolyte. Introduction: The properties of anolyte and catholyte are measured with pH and Oxidation Reduction Potential (ORP). The indicator pH gives information about the acidity and alkalinity of the liquids. Oxidation Reduction Potential (ORP) is associated with electron transition processes. There is a dependence between oxidation-reduction processes and antioxidant. Results: The physical-chemical properties of the catholyte and anolyte determine their activity. The optimal values for catholyte for ORP are (-200 - -400 mV) and for pH (8.5 – 9.5). For the anolyte they are (+500 - +600 mV) and for pH (3.5 – 4.5).