Climate change has now been accepted as a blatant reality which is mainly human induced and is widelyrecognized as the greatest challenge ever faced by mankind. Small Island Developing States (SIDSs) have little contribution among all nations in terms of greenhouse gasses emission responsible for climatic change. Even then, they are believed to be the places which will be hit first and will be the most affected from the adverse impacts of climate change and some places could experience irrecoverable physical damage. This paper specifically focuses on these highly vulnerable nations on the earth. It presents a crisp review on their major vulnerabilities (especially related to water resources sector) under climate change impacts and major factors that make them vulnerable. Also, it brings forward different plausible adaptation measures specifically suitable for SIDSs nations as identified by previous similar studies.