Solar still is a device which is used to obtain fresh drinkable water from saline water with the use of solar radiations and solar desalination process. There is a number of solar still designs and various ways to increase its performance. So, in this review paper, an attempt is done to do an analysis of the heat transfer coefficient on various parameters (PCM, Specific height, Aspect Ratio, Insulation, Thickness of glass, angle of slope and absorbing plate).