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Abstract Pervasive environmental contamination due to the uncontrolled dispersal of 2,4‐dinitrotoluene (2,4‐DNT) represents a substantial global health risk, demanding urgent intervention for the removal of this detrimental compound from affected sites and the promotion of ecological restoration. Conventional methodologies, however, are energy‐intensive, susceptible to secondary pollution, and may inadvertently increase carbon emissions. In this study, a 2,4‐DNT degradation module is designed, assembled, and validated in rice plants. Consequently, the modified rice plants acquire the ability to counteract the phytotoxicity of 2,4‐DNT. The most significant finding of this study is that these modified rice plants can completely degrade 2,4‐DNT into innocuous substances and subsequently introduce them into the tricarboxylic acid cycle. Further, research reveals that the modified rice plants enable the rapid phytoremediation of 2,4‐DNT‐contaminated soil. This innovative, eco‐friendly phytoremediation approach for dinitrotoluene‐contaminated soil and water demonstrates significant potential across diverse regions, substantially contributing to carbon neutrality and sustainable development objectives by repurposing carbon and energy from organic contaminants.