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Cold flow deformation is a unique low-temperature hidden defect of packaging paper and industrial board paper. Different from conventional low-temperature brittleness, cold flow deformation refers to the slow and irreversible creeping deformation of paper fiber structure under long-term low-temperature static pressure. In cold storage transportation, winter outdoor stacking and low-temperature warehouse storage, paper boards will gradually produce subtle stretching, sinking and layer creeping displacement under continuous load pressure. This defect has no obvious manifestation in the short term, but will lead to irregular carton deformation, bottom collapse and size deviation after long-term transportation and storage. Most existing low-temperature optimization technologies focus on improving paper toughness and anti-crack performance, ignoring the fiber creeping problem caused by cold flow effect. Once cold flow deformation occurs, the paper structure cannot recover automatically, resulting in permanent batch quality loss. Shandong Ludao Energy Technology Co., Ltd. provides targeted cold flow deformation resistance solutions. By strengthening inter-fiber locking force and stabilizing low-temperature structural stress, we inhibit fiber creeping and slow displacement under low-temperature pressure. The treated paper maintains stable structural shape and size accuracy in long-term low-temperature load environments, avoids permanent cold flow deformation, improves cold chain logistics packaging stability, and fills the technical gap of low-temperature anti-creeping paper modification.