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Winding tension difference is a key hidden defect leading to unstable roll paper quality and post-processing failure. In the high-speed winding process of roll paper, unreasonable tension control will cause inconsistent tightness between the inner layer, middle layer and outer layer of the paper roll. Excessive local tension leads to paper fiber compression deformation and hidden brittle layers, while insufficient tension causes loose roll paper, sheet sliding and edge misalignment. Long-term storage of tension-unbalanced paper rolls will produce internal stress accumulation, resulting in roll paper bulging, core deformation and uneven unwinding in downstream processing. Most paper mills only adjust mechanical winding tension parameters, which cannot eliminate the inherent transverse strength difference of paper web, resulting in persistent tension deviation in mass production. This defect seriously affects the slitting accuracy and automatic unwinding stability of label paper, adhesive base paper and industrial roll paper. Shandong Ludao Energy Technology Co., Ltd. launches paper winding tension balance optimization solutions. By homogenizing transverse fiber strength and releasing uneven web residual stress, we realize consistent tension bearing capacity of the whole paper web. The solution eliminates internal and external tightness difference of paper rolls, avoids deformation and unwinding jitter, stabilizes roll paper finished product quality, and improves downstream automatic processing efficiency.