Abstract: Bah Jambi POM (Palm Oil Mill) encounters several obstacles in order to meet the quality standard of its main products, namely CPO (Crude Palm Oil). Quality standard of CPO produced, such as levels of FFA (Free Fatty Acid), often exceed the quality standards set by the customer even though the company has implemented a quality control system. The purpose of this study are (1) analyse the effectiveness of the implementation of quality control management in Bah Jambi POM to achieve quality standards of CPO set by the customer (2) to identify the factors that affect the quality of CPO in the value chain of palm oil processing industry in Bah Jambi POM. The analytical method used are statistical process control (SPC) and the causal diagram (fishbone). Results show that the quality control of FFA levels is not effective yet and have not been able to meet the quality standards specified by the customer preferences of 4.5%. The value of the FFA levels process capability are 1.282, which means the state of the industry is in a stable state and cannot afford, meaning that the process is in a state of not being able to afford enough to produce the products according to the needs and expectations of customers. Through analysis of the causal diagram showed that the factors that cause the quality of FFA levels above the quality standards set by the customer are machine, man, management, materials and methods. The improvement strategy and quality control of the CPO that can be used as inputs for the company are management companies need to conduct periodic engine maintenance and training for employees is continuous.