Recently, the National Development and Reform Commission approved the work of UHV significantly accelerated the pace of relying on high voltage transmission haze governance policies are landing quickly. It is estimated that by 2020, the national installed capacity of power generation will exceed 2 billion kilowatts and the proportion of clean energy power generation will exceed 40%. According to the requirements of haze control, the demand for new power in the eastern region will mainly depend on clean energy power generation and supply. After reading the author gave birth to many feelings. China's energy resources and energy demand is adversely distributed, the lack of primary energy in the eastern central load center. On the one hand, in the past, in order to meet the electricity supply, a large number of thermal power plants were built in the eastern part of the country, with an average power plant of 30 kilometers along the Yangtze River and an average of 10 kilometers of power plants from Nanjing to Zhenjiang. On the other hand, more than 70% of China's clean energy resources such as hydropower, wind power and solar power are mainly distributed in the western and northern regions away from the load centers such as Beijing, Tianjin, Hebei, Yangtze River Delta and Pearl River Delta. Therefore, in recent years, the hazy weather has become increasingly serious in many regions of our country. The essence of this is the concentrated release of long-term accumulation of contradictions caused by the "natural deficiency" of energy and resource endowments and the "acquired disorder" of the energy development mode. To solve China's energy and resource allocation, it is necessary to develop long-distance large-capacity transmission technologies and improve the transmission grid. By speeding up the transmission of EHV to air pollution such as smog, a broad consensus has been reached in the society and the effect is obvious. At present, China State Grid has built "three to four straight" UHV projects and under construction of "four crossings and six straight" UHV projects, with a total length of more than 29,000 km of UHV transmission lines under construction. In addition, China's UHV Technology has become the world standard. With its advanced UHV AC and DC power transmission technology, China has successfully walked the world's technological frontiers and successfully operated the backbone energy networks in six countries and regions such as the Philippines and Brazil. Take the road to control high-pressure haze, we should strengthen the top design, pay attention to the coordinated development of power grid. Power supply projects with UHV have their own construction cycle. We should take the haze governance as an opportunity to enhance the synergy of power projects and UHV projects through scientific planning so as to avoid disorderly development of new energy sources and over-planned development and to establish a consumption structure and power system operation suitable for the development of renewable energy Scheduling mode. As a result, the tested UHV trans-regional transmission technology is not only a "cure" for haze control, but also a "long-acting medicine" for controlling haze. With the accelerating development of UHV power grids, UHV will surely play a greater role in reducing haze pollution and rebuilding green water and blue sky. Here, the national grid must play its part.