A UV forming apparatus and method for roll to roll alignment is disclosed. The apparatus comprises an unrolling mechanism (101), a coating mechanism (102), a UV forming mechanism (100), a stripping mechanism (107) and a withdraw roll mechanism (110); wherein the apparatus further comprises an adjusting alignment mechanism (10) comprising a flat mold supporting apparatus (116) and an alignment probe (108), the flat mold supporting apparatus (116) is capable of adjusting the position of the flat mold at three degrees of freedom including horizontal, vertical, and angle; the mold (112) is disposed on the flat mold supporting apparatus, the UV forming mechanism (100) and the adjusting alignment mechanism (10) are fixed to the forming apparatus. The present disclosure eliminates the influence of the cumulative error and the bubbles to patterns in the alignment procedure during production.