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Trimming quality is a key detail index that directly affects finished paper grade and downstream processing efficiency. In high-speed slitting and edge trimming processes, most ordinary paper suffers from common edge defects including burrs, fluffy edges, edge powder falling, tiny cracks and uneven incision. These problems are mainly caused by unstable edge fiber bonding, inconsistent edge moisture, unbalanced transverse strength and loose surface fiber structure. Poor trimming quality leads to rough paper edges, easy fiber shedding and edge layering, which will cause paper jamming in automatic printing machines, uneven lamination edges and low finished product yield. For high-precision office paper, high-end packaging paper and roll paper products, unqualified trimming edges will also result in positioning deviation during die-cutting and embossing, bringing continuous after-sales quality complaints. Many paper mills simply adjust cutter speed and pressure to improve trimming effect, which cannot solve the fundamental structural defects of paper edges, and the burr and crack problems will recur in mass production. Shandong Ludao Energy Technology Co., Ltd. launches professional paper trimming quality optimization solutions. By balancing transverse edge strength and moisture uniformity, strengthening edge fiber compactness and bonding fastness, we improve paper cutting adaptability in high-speed trimming. The treated paper presents neat, smooth and burr-free incision after slitting, no edge powder falling and micro cracking, maintains complete edge structure, greatly improves finished paper appearance grade, stabilizes downstream automatic processing, and effectively reduces trimming defective rate and waste loss.