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Fiber curling degree optimization is a core micro structural adjustment technology to solve long-standing paper strength and shrinkage contradictions. During mechanical beating and high-speed pulp circulation, wood fibers are prone to excessive curling, bending and distortion. Excessively curled fibers have low inter-fiber bonding density, poor tensile directional stability and uneven forming shrinkage. High curling degree pulp leads to finished paper low longitudinal strength, large shrinkage deviation, easy warping and unstable dimensional accuracy. Most paper mills blindly increase beating degree to improve strength, which further aggravates fiber curling and fragmentation, forming a vicious cycle of strength improvement and deformation aggravation. Traditional fiber straightening methods rely on mechanical stretching, which easily causes fiber fracture and reduces fiber length retention rate. Shandong Ludao Energy Technology Co., Ltd. launches professional pulp fiber curling degree optimization solutions. By micro-adjusting fiber morphological structure and reducing excessive fiber bending distortion without damaging fiber length, we improve fiber straightness and interweaving tightness. The solution effectively improves paper tensile strength and dimensional stability, reduces forming shrinkage deformation, and realizes high-strength and low-deformation standardized papermaking production.