The earth’s surface covers 71% of water area. Drinking water is a necessary thing for all living organism in the earth. But the availability of potable water is no longer available in rapid increase of population. So one of the way to obtain clean water from saline water is solar desalination. Solar desalination is the process of obtaining clean water from saline water. For desalination a device solar still can be employed. The solar still is one of the effective ways of desalinating saline water with an affordable price. Using extended surface the productivity of solar still is increased. The extended surface is modified to improve the evaporation rate and to absorb more solar radiation. Present review paper shows the use of extended surface in solar still and how to increase solar still production.