Because of climate change, drought and human misconduct, the world's most precious resource, water, is becoming scarcer. There are still many problems caused by water shortages around the world, the real situation is much brutal than we think. Some people may say that there is not a lot of water in the sea? There is indeed a lot of water in the sea, but unfortunately the water is not available for us to drink directly. Drinking fresh water on Earth Accompanied by the global warming of the climate, the increase of production water, the rapid population growth, the destruction of environmental pollution and other factors, water resources are gradually decreasing. According to the 2015 WHO / UNICEF joint monitoring report, the world's water scarcity is worsening. One third of the world's population does not have access to adequate sanitation resources. One population does not have access to adequate safe drinking water resources. Of course, the report also affirmed that the water crisis has improved in some areas, but there are still many potential dangers. The report highlights significant improvements in rural water supply, but the process of improving safe drinking water has been slow. At present, over 55% of the world's population live in cities or gather near the cities, indicating that the urban population is the largest. This is the first time in human history that the urban population is larger than the rural population. According to a recent study by WaterAid, the rising urban population, which is expected to reach two thirds of the world's population by 2050, undoubtedly exacerbated the pressure on safe drinking water supply. We live in an age of variable climate change. The effects of global warming on a global warming caused by a steady increase in temperature have equalized the effects of natural disasters such as droughts, storms and floods, which in turn have had a serious impact on the water supply and, as time goes by, the problem remains Left, can not be solved. It is one of the biggest challenges for water utilities to measure whether the water pipe is replaced before it expires or until the water pipe is damaged, replaced, and destroyed. For example, in the United States, a watermain burst occurred in Philadelphia, bringing nearly 40 million liters of water to flood the streets of Philadelphia. The reason and found that the burst of water pipes is installed in 1885 has been aging iron cast pipe. So how can we mitigate the world's water crisis? Interestingly, the answer lies in another traditional infrastructure: the mobile network. In an era of unprecedented technological advances, this technology may have talked about the realization of people, but low-power wide area (LPWA) network technology has been steadily developing, ready. So where is the uniqueness of this technology? It can support online information exchange, and the battery can be used for a long time. In utilities, especially in water resources management, leaks can be detected with sensors and water meters, reducing consumption. The recently released GSMA Smart City Guide: Water Resource Management explains how this technology and other existing mobile technologies become an integral part of smart cities, and details in Las Vegas, A case study of Atlanta and Tainan, Taiwan. These case studies show that the use of mobile technology can lead to reduced consumption, drastically improved detection of leaks and better monitoring of water quality. Of course LPWA adoption will depend on its cost effectiveness, and there are many ways in this regard, where LPWA has the advantage over traditional solutions. Because the LPWA device sends a relatively small amount of data, the total cost of the solution is kept to a minimum, which means that the technology can be retrofitted at a lower cost. Importantly, LPWA gives tap water companies the ability to remotely monitor water usage below many levels, meaning they can read more often and will become less dependent on manual or drive readings. Existing remote monitoring solutions that support mobile devices, such as AT & T's HydroPoint, have saved customers $ 137 million and proved their value only in mid-2015.