The“Japanese nuclearization issue”is homogenous with the Iranian and the DPRK nuclearization issue，but it has not been paid due attention by the international community for resolution.The reason is multifold.First，Japan's accession to the NPT has created a space for Japan to switch between“peaceful uses”and“military purposes”of nuclear energy within a legitimate framework.Second，Japan implements a disparate policy that combines“anti-nuclearization”with“nuclearization”，“anti-nuclearization”with“nuclear dependency”，and“propaganda”with“action”，so that it can benefit maximally from“peaceful uses”and“military purposes”.Japan's nuclear claims are thus not much regulated by the NPT；the NPT has even gradually become a protective screen to Japan's secure development and realization of“potential nuclear armament”.In this regard，China is in urgent need of insights and active response.