Recently, the National Energy Administration issued the Action Plan for the construction and renovation of distribution networks (2015-2020) , effectively increasing the investment in distribution networks through the implementation of the action plan for the construction and renovation of distribution networks. As the necessary transmission and distribution equipment in power generation industry, the demand of power transformer is closely related to the investment scale of power network. The functions of power transformers are manifold. They can not only raise the voltage and send it to the area where the electricity is used, but also reduce the voltage to the applied voltage at various levels, to meet the needs of power consumption, the work focus and development strategy of the State Grid Corporation of China (SGCC) have a great impact on the entire power industry. The implementation of distribution automation and rural network transformation will drive the rapid development in the field of power transformation and distribution, in particular, the total transformer market demand, bidding will increase greatly, the global transformer market will gradually tilt to China, the application of sophisticated products is expected to achieve better results in China. In the transformation of power grid, increasing the investment of power grid funds will provide a strong driving force for the increase of transformer market demand, bring opportunities and challenges to the transformer industry, and promote the rapid development of the transformer industry, it is expected that China's transformer industry will continue to grow in size during the period fifteen. With the increase of investment in power network reconstruction, China's transformer market is growing rapidly and has become the second largest market in the world, which will lead the development of global distribution network construction. The transformation of Rural Power Grid will increase the investment of power grid construction directly, make the share of power equipment manufacturing industry bigger, the transformer industry will usher in a new development opportunity period. With the continuous transformation of China's Power Grid, the rapid development of new energy power generation industry has brought better development space for transformers, and has also become an important direction for power transformer enterprises to seize market segments and expand business scope. With the new opportunities, the market for power transformers is expanding, and at the same time, the transformer industry is also required to make new upgrades, especially in the context of intelligent development, energy-saving, intelligent transformer research and development, manufacturing, sales, use, maintenance will become the mainstream.