With the development of human science and technology, the ecological environment is also destroyed. One particularly big source of contamination recently is the release of contaminated water from Japan's nuclear reactors. The nuclear waste generated in the operation of nuclear facilities and reactors is radioactive and inevitably causes environmental pollution. If there are mistakes in the operation process and operation procedures, it will lead to nuclear accidents, cause huge environmental disasters, damage human health and cause difficult to estimate property losses. After the cabinet meeting, the Japanese government announced that it will start to discharge contaminated water from the reactors of the Fukushima nuclear power plant from the 24th. According to this idea, the Fukushima nuclear power plant will continue to discharge contaminated water for at least the next 30 years. According to this incident, many media and experts are judging the consequences of this incident and what to do in the future. So, how should we deal with and view this incident? So the first thing to look at is how this is regulated or violated in international law. In the future, more international solutions and actions will be needed to maintain world peace and health.