Abstract: In order to get high-magnification and large field of view in zoom system designing, adopts new methods in zoom lens designing with multiple moving lends groups. The design a kind of high-magnification continuous zoom lens, the systems adopts 5 moving lens groups has achieved the continuous zoom from 7 mm to 1 400 mm and the field of view from 0.25to 47.44. By choosing 10 positions of focal length for the design and calculation, The results show that this continuous zoom has the characteristics of high magnification and large field of view, and the imaging quality high.