In today Modern world requirement of power is to be increased day by day so that highly efficient technique is to be required for power system. Power system is highly complex and interconnected so there is a great requirement to improve power utilization while still maintaining reliability and security. This paper presents a study of various researches which were come out in last few decades’ for power oscillation control. This paper tells us an important review of power system stability and power oscillation control techniques. The paper demonstrates overview of various approaches and methods applied to achieve it. The paper provides helpful information and resources for the future studies for researchers those interested in the problem or to do additional research in this technical area.