As an alternative approach to ecological restoration, "carbon sink subscription" holds positive significance in remedying environmental damage resulting from crimes that infringe upon the legal interests of the ecological environment. Currently, "carbon sink subscription" has been promoted and applied in the rulings of China''s environmental judicial practice, emerging as a crucial method for perpetrators involved in cases of environmental and resource destruction to bear their ecological restoration responsibilities. Employing empirical research methods, this study sorts out the specific application modalities of "carbon sink subscription" in judicial practice. It analyzes the necessity of utilizing this mechanism as a "small incision" to advance broader environmental objectives within the context of national strategic deployment. The study identifies several practical dilemmas, including the uncertain scope of judicial application for "carbon sink subscription", unclear judicial application sequence, and the unclear standards for determining monetary amounts. To address these challenges, the paper proposes optimization paths such as clarifying the scope of judicial application for "carbon sink subscription", establishing the judicial application sequence of "carbon sink subscription", and determining the standards for determining the amount of "carbon sink subscription". These measures aim to enhance the operability and effectiveness of "carbon sink subscription" in judicial practice, thereby contributing to the realization of the "Dual Carbon" goals.