The achievement of oil Extraction Rate is one of the palm oil mill performances that needs to be continuously improved. The achievement of oil Extraction Rate is obtained from efforts to synergize plant parts and processing plants which must be managed with a good management system. The implementation of an appropriate and consistent quality management system (Plan, do, check, action/PDCA) is expected to increase optimal yield in accordance with predetermined targets. This research method is descriptive quantitative with research variables processing capacity, production yield, production quality and processing costs. The results showed that (1) The company's management efforts in achieving CPO yield are integrating onfarm and off farm that are managed by implementing a quality managemen System (Plan, do, Check, Action/PDCA). (2) The Relationship of the ISO 9001;2015 to that affect the yield of CPO : (a) Planned 23,5 % oil yield by 2020, (b) Establish and implement SOP and IK in onfarm and off farm. (c) Performs external and Internal audits every years.