Unmanned Air Vehicles (UAV’s) also known as drones have a wide range of applications in different fields like agriculture, industries, surveying and military applications. Since the number of UAV’s and their applications are booming, their safety is becoming a serious concern nowadays. Damages of drones could cost the loss of the robot and information. Hence the safe landing of drones and development of recovery systems are points of discussion over past years. There are different methods and techniques used for UAV recovery like Parachute recovery system, AI based obstacle avoidance, vision based safe landing etc. Out of all, the most effective method is the simple parachute. This study aims to provide a review on Parachute Recovery Systems (PRS) used for UAV recovery.