The utilization of the Doubly Fed Induction Generator (DFIG) based wind energy conversion systems is increasing with the benefits of variable speed operation, partial rating power converters and reactive power support. However, the problem of SubSynchronous Resonance (SSR) may occur in an induction generator based wind farms connected to the power system consisting of series compensated transmission line. The SSR in DFIG based wind power generation is of more interest in recent years after a real-time event occurred at the Electric Reliability Council of Texas (ERCOT) grid. In this paper, we present a review on the analysis of SSR and its mitigation concerned to the DFIG based wind farms. The classification of SSR is reviewed and a brief comparison of SSR analysis methods such as frequency scanning technique, eigenvalue analysis and digital simulation method is presented. Also, this paper focuses the review on the impact of various parameters of DFIG wind energy conversion systems which significantly affect the SSR characteristics. Further, a review on the mitigation of SSR using supplementary damping controllers with FACTS devices and converter controllers in DFIG based wind farms is presented with the merits and demerits of each method. © 2018 International Journal of Renewable Energy Research.