Uranium is not only an important strategic resource for national development, but also an important global energy raw material. About 98% of natural uranium is sold to the nuclear power generation market every year, and the sales volume of nuclear power market in 2020 is 64832tU. This paper analyzes the current situation of uranium resources in the world from the aspects of uranium resource reserves and production output, and discusses the nuclear energy policy and development trend of some countries. Under “Dual Carbon” goals, countries all over the world are actively seeking alternatives to green energy and new energy. More use of nuclear energy is needed and used as a backup energy for renewable energy power plants.