本发明提供一种聚氨酯光学树脂品质控制方法及其应用，所述制备方法包括将包含异氰酸酯和多元硫醇化合物的原料组合物通过聚合反应得到所述聚氨酯光学树脂，原料组合物中所用异氰酸酯的浊度值控制为≤2NTU。本发明提供的聚氨酯光学树脂制备方法能够有效提升光学性能和外观品质。

The invention provides a polyurethane optical resin quality control method and application thereof, the preparation method comprises the step of carrying out polymerization reaction on a raw materialcomposition containing isocyanate and a polythiol compound to obtain the polyurethane optical resin, and the turbidity value of the isocyanate used in the raw material composition is controlled to beless than or equal to 2NTU. The preparation method of the polyurethane optical resin provided by the invention can effectively improve the optical performance and the appearance quality.