本发明公开一种异氰酸酯组合物及使用该组合物制备的光学树脂。所述异氰酸酯组合物中，钠、钾、铁、铬、锰和镍元素中的一种或多种，基于异氰酸酯计算，含量大于1ppm小于等于50ppm；优选为大于1ppm小于等于20ppm，制备的光学树脂具有低光学形变和白浊发生率。优选的，异氰酸酯组合物中还含有一定量的络合剂，能使异氰酸酯具有优异的储存稳定性。

The invention discloses an isocyanate composition, and an optical resin prepared by using the same. The content of one or more of sodium, potassium, iron, chromium, manganese and nickel elements in the isocyanate composition based on isocyanate is more than 1 ppm and less than or equal to 50 ppm, and preferably more than 1 ppm and less than or equal to 20 ppm, and the prepared optical resin has low optical deformation and a low white turbidity occurrence rate. Preferably, the isocyanate composition also contains a certain amount of a complexing agent, so that the isocyanate has an excellent storage stability.