Plasma technology is formed by discharge current in the air which produce ionized gas that positive and negative charged. It has a smaller potential energy than kinetic energy among the ion particles. Kinetic energy of ions which large enough will emerge measured plasma flow. This plasma flows proved the capability of degrading liquid waste oil palm indicated by oxidation in the liquid waste that increase after degraded and reduced the value of the electrical conductivity in the liquid waste after degraded. Base on the correlation between the effects of changes in the plasma flows toward Oxidation Reduction Potential (ORP) and EC (Electrical Conductivity) is greater than 90 % .