This paper represents a review on Stability improvement of wind farm using the Flexible AC Transmission System (FACTS) device. FACTS devices are used to increase the transient stability on the presence of faults and the integration of renewable sources, like wind energy. Due to continuously varying wind speed and also due to fault the active and reactive power along with terminal voltage fluctuates continuously. By connecting Static Synchronous Compensator (STATCOM) into the grid, the active power, reactive power, and terminal voltage are maintained constant and also help to improve the transient stability of the system.