Nowadays, the world is facing problem of water for different purposes such as vital drinking water, this work is thought to be one of the best solution of this major problem that we all facing. due to climatic change; drought, desertification and rare of rainfall occurred in many places over the world and hence water availability, my work is dealing with rainwater harvest and storage in both surface and subsurface methods, each base on geological topographical conditions. I investigates to Recognize which storage type is suitable to carried out in specific area of Al Biteira, and I found one site can use as subsurface storage and three sites may used for surface storage. This study can be adopted in similar area around the world.