The environment of Aflaj system is shared between natural and old man made} created thousandth years ago to accommodate the old civilization. Howeverl this environment is disturbed by the climatic changes which affect the total area causing drought and desertification. The 2008 Stockholm World Water Week and the third Water WDR conference concluded that "The main impacts of climate change on humans and the environment occur through water". This effect of climate change is reflected by a degradation of Falaj numbers which cause drought and desertification of the soil in a valuable place such as, Oman Mountains rang. Accordingly, the impact of climate change on Aflaj environment can be identified by Fa/aj dry out and Water deficit in most Aflaj oasis, which lead to a desertification of irrigated areas and a reduction of green areas. AdditionallYl the more warmer and drier the land becomes, the more water is required. The higher temperature causes high water demand and evaporation from trees which cause rapid drying of existing crops. Moreover, drier soil is easy eroded by the rain and runoff which worsening the environment. This is being seen as a warning and that it is time to commence taking steps to reduce the effect of climate change and save the environment. This paper shows the effect of climate change on the Aflaj Oasis environment and its impacts. Given the importance of the Aflaj system to the Oman's society, the paper highlights the potential strategies to mitigate or reduce those impacts to sustain Aflaj environment. The strategy recommends better water management} impact minimisation and monitor and control. More efforts should be given for the use of water saving technology. With all of these measures, impact of climate change on Aflaj Oasis environment can be reduced Refereed/Peer-reviewed