Abstract Antarctica is place well known for its adverse conditions – low temperature, low water availability, strong winds and high incidence of solar radiation, specially the UV radiation altogether constitute limiting factor for plant and animal life. Absorption of UV-B radiation by plants can damage and disrupt key biological molecules. UV-B damage can manifest reduced photosynthesis, growth of the plants and photosynthetic productivity. Antarctic plants experiences UV-B stress and for their survival has shown various adaptive strategies. The first line of defence is to screen UV-B radiation before it reaches the cell, then to minimize damage within the cells through other protective strategies, and finally to repair damage once it has occurred. The survival of Antarctic plants under ‘ozone depletion’ depends on their ability to acclimate, by employing photoprotective mechanisms to avoid and repair UV-B damage.