Both China and Japan are countries that use nuclear energy. At present, China has 55 nuclear power units in operation, and Japan has 10 nuclear power units in operation. The normal operating nuclear power plants of both sides are normal no matter how much nuclear waste water they discharge according to international standards. However, what Japan discharges this time is not nuclear wastewater from a normal nuclear power plant, but nuclear wastewater that has been heavily polluted by nuclear pollution. Its discharge cannot follow normal nuclear power plant operating standards. As for how much harm the nuclear-contaminated water will cause, there is no precedent before. China has reason to control the import of agricultural products from Japan.