A goggle lens positioning structure includes a protective soft pad, a frame, and a lens. The lens and the frame are coupled together by following the steps below. Pressing portions and carrying portions disposed at upper and lower sides of the frame and extending forward are inserted into concave portions concavely disposed at corresponding portions of the lens. After penetrating holes disposed at corresponding portions of the lens, branch portions extending from two outer sides of the frame leave a hole at one end of a fastening unit to restrict movement. The frame is received in the receiving space of the protective soft pad to effectuate engagement therebetween. Hence, the lens and the frame can be quickly put together and easily separated.